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1 Beta Release 0.1.19 (15 March, 2013) | |
2 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
3 | |
4 Notable changes in samtools and bcftools: | |
5 | |
6 * The latest source code and development moved to github, | |
7 http://github.com/samtools/samtools | |
8 | |
9 * Many important bugfixes and contributions by many people. Thanks to all! | |
10 | |
11 * Performance improvements (multi-threading) | |
12 | |
13 * Important changes in calling, see | |
14 - samtools mpileup -p | |
15 - bcftools view -m | |
16 | |
17 * New annotations useful for filtering (RPB, HWE, QBD, MDV) | |
18 | |
19 * New tools, bamcheck and plot-bamcheck | |
20 | |
21 * New features in samtools tview | |
22 | |
23 * And much more.. | |
24 | |
25 For a detailed list of commits, please see | |
26 http://github.com/samtools/samtools/commits/master | |
27 | |
28 (0.1.19: 15 March 2013, commit 96b5f2294ac0054230e88913c4983d548069ea4e) | |
29 | |
30 | |
31 Beta Release 0.1.18 (2 September, 2011) | |
32 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
33 | |
34 Notable changes in samtools: | |
35 | |
36 * Support the new =/X CIGAR operators (by Peter Cock). | |
37 | |
38 * Allow to subsample BAM while keeping the pairing intact (view -s). | |
39 | |
40 * Implemented variant distance bias as a new filter (by Petr Danecek). | |
41 | |
42 * Bugfix: huge memory usage during indexing | |
43 | |
44 * Bugfix: use of uninitialized variable in mpileup (rare) | |
45 | |
46 * Bugfix: wrong BAQ probability (rare) | |
47 | |
48 Notable changes in bcftools: | |
49 | |
50 * Support indel in the contrast caller. | |
51 | |
52 * Bugfix: LRT2=nan in rare cases | |
53 | |
54 (0.1.18: 2 September 2011, r982:295) | |
55 | |
56 | |
57 | |
58 Beta Release 0.1.17 (6 July, 2011) | |
59 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
60 | |
61 With the maturity of `mpileup' and the lack of update in the `pileup' command, | |
62 the `pileup' command is now formally dropped. Most of the pileup functionality, | |
63 such as outputting mapping quality and read positions, have been added | |
64 `mpileup'. | |
65 | |
66 Since this release, `bcftools view' is able to perform contrast SNP calling | |
67 (option -T) for discovering de novo and/or somatic mutations between a pair of | |
68 samples or in a family trio. Potential mutations are scored by a log likelihood | |
69 ratio, which is very simple in math, but should be comparable to more | |
70 sophisticated methods. Note that getting the score is only the very first step. | |
71 A lot more need to be done to reduce systematical errors due to mapping and | |
72 reference errors and structural variations. | |
73 | |
74 Other notable changes in samtools: | |
75 | |
76 * Improved sorting order checking during indexing. | |
77 | |
78 * Improved region parsing. Colons in reference sequence names are parsed | |
79 properly. | |
80 | |
81 * Fixed an issue where mpileup does not apply BAQ for the first few reads when | |
82 a region is specified. | |
83 | |
84 * Fixed an issue where `faidx' does not work with FASTA files with long lines. | |
85 | |
86 * Bugfix: wrong SP genotype information in the BCF output. | |
87 | |
88 Other notable changes in bcftools: | |
89 | |
90 * Output the ML esitmate of the allele count. | |
91 | |
92 * Added the HWE plus F<0 filter to varFilter. For multiple samples, it | |
93 effectively filters false heterozygous calls around centromeres. | |
94 | |
95 * For association mapping, perform both 1-degree and 2-degree test. The | |
96 2-degree test is conservative but more robust to HWE violation. | |
97 | |
98 (0.1.17: 6 July 2011, r973:277) | |
99 | |
100 | |
101 | |
102 Beta Release 0.1.16 (21 April, 2011) | |
103 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
104 | |
105 Notable changes in samtools: | |
106 | |
107 * Support the new SAM/BAM type `B' in the latest SAM spec v1.4. | |
108 | |
109 * When the output file of `samtools merge' exists, do not overwrite it unless | |
110 a new command-line option `-f' is applied. | |
111 | |
112 * Bugfix: BED support is not working when the input BED is not sorted. | |
113 | |
114 * Bugfix: some reads without coordinates but given on the reverse strand are | |
115 lost in merging. | |
116 | |
117 Notable changes in bcftools: | |
118 | |
119 * Code cleanup: separated max-likelihood inference and Bayesian inference. | |
120 | |
121 * Test Hardy-Weinberg equilibrium with a likelihood-ratio test. | |
122 | |
123 * Provided another association test P-value by likelihood-ratio test. | |
124 | |
125 * Use Brent's method to estimate the site allele frequency when EM converges | |
126 slowly. The resulting ML estimate of allele frequnecy is more accurate. | |
127 | |
128 * Added the `ldpair' command, which computes r^2 between SNP pairs given in | |
129 an input file. | |
130 | |
131 Also, the `pileup' command, which has been deprecated by `mpileup' since | |
132 version 0.1.10, will be dropped in the next release. The old `pileup' command | |
133 is substandard and causing a lot of confusion. | |
134 | |
135 (0.1.16: 21 April 2011, r963:234) | |
136 | |
137 | |
138 | |
139 Beta Release 0.1.15 (10 April, 2011) | |
140 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
141 | |
142 Noteable changes: | |
143 | |
144 * Allow to perform variant calling or to extract information in multiple | |
145 regions specified by a BED file (`samtools mpileup -l', `samtools view -L' | |
146 and `bcftools view -l'). | |
147 | |
148 * Added the `depth' command to samtools to compute the per-base depth with a | |
149 simpler interface. File `bam2depth.c', which implements this command, is the | |
150 recommended example on how to use the mpileup APIs. | |
151 | |
152 * Estimate genotype frequencies with ML; perform chi^2 based Hardy-Weinberg | |
153 test using this estimate. | |
154 | |
155 * For `samtools view', when `-R' is specified, drop read groups in the header | |
156 that are not contained in the specified file. | |
157 | |
158 * For `samtools flagstat', separate QC-pass and QC-fail reads. | |
159 | |
160 * Improved the command line help of `samtools mpileup' and `bcftools view'. | |
161 | |
162 * Use a global variable to control the verbose level of samtools stderr | |
163 output. Nonetheless, it has not been full utilized. | |
164 | |
165 * Fixed an issue in association test which may report false associations, | |
166 possibly due to floating point underflow. | |
167 | |
168 (0.1.15: 10 April 2011, r949:203) | |
169 | |
170 | |
171 | |
172 Beta release 0.1.14 (21 March, 2011) | |
173 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
174 | |
175 This release implements a method for testing associations for case-control | |
176 data. The method does not call genotypes but instead sums over all genotype | |
177 configurations to compute a chi^2 based test statistics. It can be potentially | |
178 applied to comparing a pair of samples (e.g. a tumor-normal pair), but this | |
179 has not been evaluated on real data. | |
180 | |
181 Another new feature is to make X chromosome variant calls when female and male | |
182 samples are both present. The user needs to provide a file indicating the | |
183 ploidy of each sample (see also manual bcftools/bcftools.1). | |
184 | |
185 Other notable changes: | |
186 | |
187 * Added `bcftools view -F' to parse BCF files generated by samtools r921 or | |
188 older which encodes PL in a different way. | |
189 | |
190 * Changed the behavior of `bcftools view -s'. Now when a list of samples is | |
191 provided, the samples in the output will be reordered to match the ordering | |
192 in the sample list. This change is mainly designed for association test. | |
193 | |
194 * Sped up `bcftools view -v' for target sequencing given thousands of samples. | |
195 Also added a new option `view -d' to skip loci where only a few samples are | |
196 covered by reads. | |
197 | |
198 * Dropped HWE test. This feature has never been implemented properly. An EM | |
199 should be much better. To be implemented in future. | |
200 | |
201 * Added the `cat' command to samtools. This command concatenate BAMs with | |
202 identical sequence dictionaries in an efficient way. Modified from bam_cat.c | |
203 written by Chris Saunders. | |
204 | |
205 * Added `samtools view -1' to write BAMs at a low compression level but twice | |
206 faster to create. The `sort' command generates temporary files at a low | |
207 compression level as well. | |
208 | |
209 * Added `samtools mpileup -6' to accept "BAM" with Illumina 1.3+ quality | |
210 strings (strictly speaking, such a file is not BAM). | |
211 | |
212 * Added `samtools mpileup -L' to skip INDEL calling in regions with | |
213 excessively high coverage. Such regions dramatically slow down mpileup. | |
214 | |
215 * Updated `misc/export2sam.pl', provided by Chris Saunders from Illumina Inc. | |
216 | |
217 (0.1.14: 21 March 2011, r933:170) | |
218 | |
219 | |
220 | |
221 Beta release 0.1.13 (1 March, 2011) | |
222 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
223 | |
224 The most important though largely invisible modification is the change of the | |
225 order of genotypes in the PL VCF/BCF tag. This is to conform the upcoming VCF | |
226 spec v4.1. The change means that 0.1.13 is not backward compatible with VCF/BCF | |
227 generated by samtools older than r921 inclusive. VCF/BCF generated by the new | |
228 samtools will contain a line `##fileformat=VCFv4.1' as well as the samtools | |
229 version number. | |
230 | |
231 Single Individual Haplotyping (SIH) is added as an experimental feature. It | |
232 originally aims to produce haploid consensus from fosmid pool sequencing, but | |
233 also works with short-read data. For short reads, phased blocks are usually too | |
234 short to be useful in many applications, but they can help to rule out part of | |
235 SNPs close to INDELs or between copies of CNVs. | |
236 | |
237 | |
238 Other notable changes in samtools: | |
239 | |
240 * Construct per-sample consensus to reduce the effect of nearby SNPs in INDEL | |
241 calling. This reduces the power but improves specificity. | |
242 | |
243 * Improved sorting order checking in indexing. Now indexing is the preferred way | |
244 to check if a BAM is sorted. | |
245 | |
246 * Added a switch `-E' to mpileup and calmd. This option uses an alternative way | |
247 to apply BAQ, which increases sensistivity, especially to MNPs, at the cost of | |
248 a little loss in specificity. | |
249 | |
250 * Added `mpileup -A' to allow to use reads in anomalous pairs in SNP calling. | |
251 | |
252 * Added `mpileup -m' to allow fine control of the collection of INDEL candidates. | |
253 | |
254 * Added `mpileup -S' to compute per-sample strand bias P-value. | |
255 | |
256 * Added `mpileup -G' to exclude read groups in variant calling. | |
257 | |
258 * Fixed segfault in indel calling related to unmapped and refskip reads. | |
259 | |
260 * Fixed an integer overflow in INDEL calling. This bug produces wrong INDEL | |
261 genotypes for longer short INDELs, typically over 10bp. | |
262 | |
263 * Fixed a bug in tview on big-endian machines. | |
264 | |
265 * Fixed a very rare memory issue in bam_md.c | |
266 | |
267 * Fixed an out-of-boundary bug in mpileup when the read base is `N'. | |
268 | |
269 * Fixed a compiling error when the knetfile library is not used. Fixed a | |
270 library compiling error due to the lack of bam_nt16_nt4_table[] table. | |
271 Suppress a compiling warning related to the latest zlib. | |
272 | |
273 | |
274 Other notable changes in bcftools: | |
275 | |
276 * Updated the BCF spec. | |
277 | |
278 * Added the `FQ' VCF INFO field, which gives the phred-scaled probability | |
279 of all samples being the same (identical to the reference or all homozygous | |
280 variants). Option `view -f' has been dropped. | |
281 | |
282 * Implementated of "vcfutils.pl vcf2fq" to generate a consensus sequence | |
283 similar to "samtools.pl pileup2fq". | |
284 | |
285 * Make sure the GT FORMAT field is always the first FORMAT to conform the VCF | |
286 spec. Drop bcf-fix.pl. | |
287 | |
288 * Output bcftools specific INFO and FORMAT in the VCF header. | |
289 | |
290 * Added `view -s' to call variants from a subset of samples. | |
291 | |
292 * Properly convert VCF to BCF with a user provided sequence dictionary. Nonetheless, | |
293 custom fields are still unparsed and will be stored as a missing value. | |
294 | |
295 * Fixed a minor bug in Fisher's exact test; the results are rarely changed. | |
296 | |
297 | |
298 (0.1.13: 1 March 2011, r926:134) | |
299 | |
300 | |
301 | |
302 Beta release 0.1.12a (2 December, 2010) | |
303 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
304 | |
305 This is another bug fix release: | |
306 | |
307 * Fixed a memory violation in mpileup, which causes segfault. Release | |
308 0.1.9 and above are affected. | |
309 | |
310 * Fixed a memory violation in the indel caller, which does not causes | |
311 segfault, but may potentially affect deletion calls in an unexpected | |
312 way. Release 0.1.10 and above are affected. | |
313 | |
314 * Fixed a bug in computing r-square in bcftools. Few are using this | |
315 functionality and it only has minor effect. | |
316 | |
317 * Fixed a memory leak in bam_fetch(). | |
318 | |
319 * Fixed a bug in writing meta information to the BAM index for the last | |
320 sequence. This bug is invisible to most users, but it is a bug anyway. | |
321 | |
322 * Fixed a bug in bcftools which causes false "DP4=0,0,0,0" annotations. | |
323 | |
324 (0.1.12: 2 December 2010, r862) | |
325 | |
326 | |
327 | |
328 Beta release 0.1.11 (21 November, 2010) | |
329 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
330 | |
331 This is mainly a bug fix release: | |
332 | |
333 * Fixed a bug in random retrieval (since 0.1.8). It occurs when reads | |
334 are retrieved from a small region containing no reads. | |
335 | |
336 * Fixed a bug in pileup (since 0.1.9). The bug causes an assertion | |
337 failure when the first CIGAR operation is a deletion. | |
338 | |
339 * Improved fault tolerence in remote access. | |
340 | |
341 One minor feature has been implemented in bcftools: | |
342 | |
343 * Added a reference-free variant calling mode. In this mode, a site is | |
344 regarded as a variat iff the sample(s) contains two or more alleles; | |
345 the meaning of the QUAL field in the VCF output is changed | |
346 accordingly. Effectively, the reference allele is irrelevant to the | |
347 result in the new mode, although the reference sequence has to be | |
348 used in realignment when SAMtools computes genotype likelihoods. | |
349 | |
350 In addition, since 0.1.10, the `pileup' command has been deprecated by | |
351 `mpileup' which is more powerful and more accurate. The `pileup' command | |
352 will not be removed in the next few releases, but new features will not | |
353 be added. | |
354 | |
355 (0.1.11: 21 November 2010, r851) | |
356 | |
357 | |
358 | |
359 Beta Release 0.1.10 (16 November, 2010) | |
360 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
361 | |
362 This release is featured as the first major improvement to the indel | |
363 caller. The method is similar to the old one implemented in the pileup | |
364 command, but the details are handled more carefully both in theory and | |
365 in practice. As a result, the new indel caller usually gives more | |
366 accurate indel calls, though at the cost of sensitivity. The caller is | |
367 implemented in the mpileup command and is invoked by default. It works | |
368 with multiple samples. | |
369 | |
370 Other notable changes: | |
371 | |
372 * With the -r option, the calmd command writes the difference between | |
373 the original base quality and the BAQ capped base quality at the BQ | |
374 tag but does not modify the base quality. Please use -Ar to overwrite | |
375 the original base quality (the 0.1.9 behavior). | |
376 | |
377 * Allow to set a maximum per-sample read depth to reduce memory. In | |
378 0.1.9, most of memory is wasted for the ultra high read depth in some | |
379 regions (e.g. the chr1 centromere). | |
380 | |
381 * Optionally write per-sample read depth and per-sample strand bias | |
382 P-value. | |
383 | |
384 * Compute equal-tail (Bayesian) credible interval of site allele | |
385 frequency at the CI95 VCF annotation. | |
386 | |
387 * Merged the vcfutils.pl varFilter and filter4vcf for better SNP/indel | |
388 filtering. | |
389 | |
390 (0.1.10: 16 November 2010, r829) | |
391 | |
392 | |
393 | |
394 Beta Release 0.1.9 (27 October, 2010) | |
395 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
396 | |
397 This release is featured as the first major improvement to the samtools' | |
398 SNP caller. It comes with a revised MAQ error model, the support of | |
399 multi-sample SNP calling and the computation of base alignment quality | |
400 (BAQ). | |
401 | |
402 The revised MAQ error model is based on the original model. It solves an | |
403 issue of miscalling SNPs in repetitive regions. Althought such SNPs can | |
404 usually be filtered at a later step, they mess up unfiltered calls. This | |
405 is a theoretical flaw in the original model. The revised MAQ model | |
406 deprecates the orginal MAQ model and the simplified SOAPsnp model. | |
407 | |
408 Multi-sample SNP calling is separated in two steps. The first is done by | |
409 samtools mpileup and the second by a new program, bcftools, which is | |
410 included in the samtools source code tree. Multi-sample SNP calling also | |
411 works for single sample and has the advantage of enabling more powerful | |
412 filtration. It is likely to deprecate pileup in future once a proper | |
413 indel calling method is implemented. | |
414 | |
415 BAQ is the Phred-scaled probability of a read base being wrongly | |
416 aligned. Capping base quality by BAQ has been shown to be very effective | |
417 in suppressing false SNPs caused by misalignments around indels or in | |
418 low-complexity regions with acceptable compromise on computation | |
419 time. This strategy is highly recommended and can be used with other SNP | |
420 callers as well. | |
421 | |
422 In addition to the three major improvements, other notable changes are: | |
423 | |
424 * Changes to the pileup format. A reference skip (the N CIGAR operator) | |
425 is shown as '<' or '>' depending on the strand. Tview is also changed | |
426 accordingly. | |
427 | |
428 * Accelerated pileup. The plain pileup is about 50% faster. | |
429 | |
430 * Regional merge. The merge command now accepts a new option to merge | |
431 files in a specified region. | |
432 | |
433 * Fixed a bug in bgzip and razip which causes source files to be | |
434 deleted even if option -c is applied. | |
435 | |
436 * In APIs, propogate errors to downstream callers and make samtools | |
437 return non-zero values once errors occur. | |
438 | |
439 (0.1.9: 27 October 2010, r783) | |
440 | |
441 | |
442 | |
443 Beta Release 0.1.8 (11 July, 2010) | |
444 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
445 | |
446 Notable functional changes: | |
447 | |
448 * Added the `reheader' command which replaces a BAM header with a new | |
449 header. This command is much faster than replacing header by | |
450 BAM->SAM->BAM conversions. | |
451 | |
452 * Added the `mpileup' command which computes the pileup of multiple | |
453 alignments. | |
454 | |
455 * The `index' command now stores the number of mapped and unmapped | |
456 reads in the index file. This information can be retrieved quickly by | |
457 the new `idxstats' command. | |
458 | |
459 * By default, pileup used the SOAPsnp model for SNP calling. This | |
460 avoids the floating overflow in the MAQ model which leads to spurious | |
461 calls in repetitive regions, although these calls will be immediately | |
462 filtered by varFilter. | |
463 | |
464 * The `tview' command now correctly handles CIGARs like 7I10M and | |
465 10M1P1I10M which cause assertion failure in earlier versions. | |
466 | |
467 * Tview accepts a region like `=10,000' where `=' stands for the | |
468 current sequence name. This saves typing for long sequence names. | |
469 | |
470 * Added the `-d' option to `pileup' which avoids slow indel calling | |
471 in ultradeep regions by subsampling reads locally. | |
472 | |
473 * Added the `-R' option to `view' which retrieves alignments in read | |
474 groups listed in the specified file. | |
475 | |
476 Performance improvements: | |
477 | |
478 * The BAM->SAM conversion is up to twice faster, depending on the | |
479 characteristic of the input. | |
480 | |
481 * Parsing SAM headers with a lot of reference sequences is now much | |
482 faster. | |
483 | |
484 * The number of lseek() calls per query is reduced when the query | |
485 region contains no read alignments. | |
486 | |
487 Bug fixes: | |
488 | |
489 * Fixed an issue in the indel caller that leads to miscall of indels. | |
490 Note that this solution may not work well when the sequencing indel | |
491 error rate is higher than the rate of SNPs. | |
492 | |
493 * Fixed another issue in the indel caller which may lead to incorrect | |
494 genotype. | |
495 | |
496 * Fixed a bug in `sort' when option `-o' is applied. | |
497 | |
498 * Fixed a bug in `view -r'. | |
499 | |
500 APIs and other changes: | |
501 | |
502 * Added iterator interfaces to random access and pileup. The callback | |
503 interfaces directly call the iterator interfaces. | |
504 | |
505 * The BGZF blocks holding the BAM header are indepedent of alignment | |
506 BGZF blocks. Alignment records shorter than 64kB is guaranteed to be | |
507 fully contained in one BGZF block. This change is fully compatible | |
508 with the old version of samtools/picard. | |
509 | |
510 Changes in other utilities: | |
511 | |
512 * Updated export2sam.pl by Chris Saunders. | |
513 | |
514 * Improved the sam2vcf.pl script. | |
515 | |
516 * Added a Python version of varfilter.py by Aylwyn Scally. | |
517 | |
518 (0.1.8: 11 July 2010, r613) | |
519 | |
520 | |
521 | |
522 Beta Release 0.1.7 (10 November, 2009) | |
523 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
524 | |
525 Notable changes: | |
526 | |
527 * Improved the indel caller in complex scenariors, in particular for | |
528 long reads. The indel caller is now able to make reasonable indel | |
529 calls from Craig Venter capillary reads. | |
530 | |
531 * Rewrote single-end duplicate removal with improved | |
532 performance. Paired-end reads are not touched. | |
533 | |
534 * Duplicate removal is now library aware. Samtools remove potential | |
535 PCR/optical dupliates inside a library rather than across libraries. | |
536 | |
537 * SAM header is now fully parsed, although this functionality is not | |
538 used in merging and so on. | |
539 | |
540 * In samtools merge, optionally take the input file name as RG-ID and | |
541 attach the RG tag to each alignment. | |
542 | |
543 * Added FTP support in the RAZF library. RAZF-compressed reference | |
544 sequence can be retrieved remotely. | |
545 | |
546 * Improved network support for Win32. | |
547 | |
548 * Samtools sort and merge are now stable. | |
549 | |
550 Changes in other utilities: | |
551 | |
552 * Implemented sam2vcf.pl that converts the pileup format to the VCF | |
553 format. | |
554 | |
555 * This release of samtools is known to work with the latest | |
556 Bio-Samtools Perl module. | |
557 | |
558 (0.1.7: 10 November 2009, r510) | |
559 | |
560 | |
561 | |
562 Beta Release 0.1.6 (2 September, 2009) | |
563 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
564 | |
565 Notable changes: | |
566 | |
567 * In tview, do not show a blank screen when no reads mapped to the | |
568 corresponding region. | |
569 | |
570 * Implemented native HTTP support in the BGZF library. Samtools is now | |
571 able to directly open a BAM file on HTTP. HTTP proxy is also | |
572 supported via the "http_proxy" environmental variable. | |
573 | |
574 * Samtools is now compitable with the MinGW (win32) compiler and the | |
575 PDCurses library. | |
576 | |
577 * The calmd (or fillmd) command now calculates the NM tag and replaces | |
578 MD tags if they are wrong. | |
579 | |
580 * The view command now recognizes and optionally prints FLAG in HEXs or | |
581 strings to make a SAM file more friendly to human eyes. This is a | |
582 samtools-C extension, not implemented in Picard for the time | |
583 being. Please type `samtools view -?' for more information. | |
584 | |
585 * BAM files now have an end-of-file (EOF) marker to facilitate | |
586 truncation detection. A warning will be given if an on-disk BAM file | |
587 does not have this marker. The warning will be seen on BAM files | |
588 generated by an older version of samtools. It does NO harm. | |
589 | |
590 * New key bindings in tview: `r' to show read names and `s' to show | |
591 reference skip (N operation) as deletions. | |
592 | |
593 * Fixed a bug in `samtools merge -n'. | |
594 | |
595 * Samtools merge now optionally copies the header of a user specified | |
596 SAM file to the resultant BAM output. | |
597 | |
598 * Samtools pileup/tview works with a CIGAR with the first or the last | |
599 operation is an indel. | |
600 | |
601 * Fixed a bug in bam_aux_get(). | |
602 | |
603 | |
604 Changes in other utilies: | |
605 | |
606 * Fixed wrong FLAG in maq2sam. | |
607 | |
608 | |
609 (0.1.6: 2 September 2009, r453) | |
610 | |
611 | |
612 | |
613 Beta Release 0.1.5 (7 July, 2009) | |
614 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
615 | |
616 Notable changes: | |
617 | |
618 * Support opening a BAM alignment on FTP. Users can now use "tview" to | |
619 view alignments at the NCBI ftp site. Please read manual for more | |
620 information. | |
621 | |
622 * In library, propagate errors rather than exit or complain assertion | |
623 failure. | |
624 | |
625 * Simplified the building system and fixed compiling errors caused by | |
626 zlib<1.2.2.1. | |
627 | |
628 * Fixed an issue about lost header information when a SAM is imported | |
629 with "view -t". | |
630 | |
631 * Implemented "samtool.pl varFilter" which filters both SNPs and short | |
632 indels. This command replaces "indelFilter". | |
633 | |
634 * Implemented "samtools.pl pileup2fq" to generate FASTQ consensus from | |
635 pileup output. | |
636 | |
637 * In pileup, cap mapping quality at 60. This helps filtering when | |
638 different aligners are in use. | |
639 | |
640 * In pileup, allow to output variant sites only. | |
641 | |
642 * Made pileup generate correct calls in repetitive region. At the same | |
643 time, I am considering to implement a simplified model in SOAPsnp, | |
644 although this has not happened yet. | |
645 | |
646 * In view, added '-u' option to output BAM without compression. This | |
647 option is preferred when the output is piped to other commands. | |
648 | |
649 * In view, added '-l' and '-r' to get the alignments for one library or | |
650 read group. The "@RG" header lines are now partially parsed. | |
651 | |
652 * Do not include command line utilities to libbam.a. | |
653 | |
654 * Fixed memory leaks in pileup and bam_view1(). | |
655 | |
656 * Made faidx more tolerant to empty lines right before or after FASTA > | |
657 lines. | |
658 | |
659 | |
660 Changes in other utilities: | |
661 | |
662 * Updated novo2sam.pl by Colin Hercus, the key developer of novoalign. | |
663 | |
664 | |
665 This release involves several modifications to the key code base which | |
666 may potentially introduce new bugs even though we have tried to minimize | |
667 this by testing on several examples. Please let us know if you catch | |
668 bugs. | |
669 | |
670 (0.1.5: 7 July 2009, r373) | |
671 | |
672 | |
673 | |
674 Beta Release 0.1.4 (21 May, 2009) | |
675 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
676 | |
677 Notable changes: | |
678 | |
679 * Added the 'rmdupse' command: removing duplicates for SE reads. | |
680 | |
681 * Fixed a critical bug in the indel caller: clipped alignments are not | |
682 processed correctly. | |
683 | |
684 * Fixed a bug in the tview: gapped alignment may be incorrectly | |
685 displayed. | |
686 | |
687 * Unified the interface to BAM and SAM I/O. This is done by | |
688 implementing a wrapper on top of the old APIs and therefore old APIs | |
689 are still valid. The new I/O APIs also recognize the @SQ header | |
690 lines. | |
691 | |
692 * Generate the MD tag. | |
693 | |
694 * Generate "=" bases. However, the indel caller will not work when "=" | |
695 bases are present. | |
696 | |
697 * Enhanced support of color-read display (by Nils Homer). | |
698 | |
699 * Implemented the GNU building system. However, currently the building | |
700 system does not generate libbam.a. We will improve this later. For | |
701 the time being, `make -f Makefile.generic' is preferred. | |
702 | |
703 * Fixed a minor bug in pileup: the first read in a chromosome may be | |
704 skipped. | |
705 | |
706 * Fixed bugs in bam_aux.c. These bugs do not affect other components as | |
707 they were not used previously. | |
708 | |
709 * Output the 'SM' tag from maq2sam. | |
710 | |
711 (0.1.4: 21 May 2009, r297) | |
712 | |
713 | |
714 | |
715 Beta Release 0.1.3 (15 April, 2009) | |
716 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
717 | |
718 Notable changes in SAMtools: | |
719 | |
720 * SAMtools is more consistent with the specification: a) '*' in the | |
721 QUAL field is allowed; b) the field separator is TAB only and SPACE | |
722 is treated as a character in a field; c) empty header is allowed. | |
723 | |
724 * Implemented GLFv3 support in pileup. | |
725 | |
726 * Fixed a severe bug in fixmate: strand information is wrongly | |
727 overwritten. | |
728 | |
729 * Fixed a bug in alignment retrieval: alignments bridging n*16384bp are | |
730 not correctly retrieved sometimes. | |
731 | |
732 * Fixed a bug in rmdup: segfault if unmapped reads are present. | |
733 | |
734 * Move indel_filter.pl to samtools.pl and improved the filtering by | |
735 checking the actual number of alignments containing indels. The indel | |
736 pileup line is also changed a little to make this filtration easier. | |
737 | |
738 * Fixed a minor bug in indexing: the bin number of an unmapped read is | |
739 wrongly calculated. | |
740 | |
741 * Added `flagstat' command to show statistics on the FLAG field. | |
742 | |
743 * Improved indel caller by setting the maximum window size in local | |
744 realignment. | |
745 | |
746 Changes in other utilities: | |
747 | |
748 * Fixed a bug in maq2sam: a tag name is obsolete. | |
749 | |
750 * Improvement to wgsim: a) added support for SOLiD read simulation; b) | |
751 show the number of substitutions/indels/errors in read name; c) | |
752 considerable code clean up. | |
753 | |
754 * Various converters: improved functionality in general. | |
755 | |
756 * Updated the example SAM due to the previous bug in fixmate. | |
757 | |
758 (0.1.3: 15 April 2009, r227) | |
759 | |
760 | |
761 | |
762 Beta Release 0.1.2 (28 January, 2008) | |
763 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
764 | |
765 Notable changes in SAMtools: | |
766 | |
767 * Implemented a Bayesian indel caller. The new caller generate scores | |
768 and genotype and is potentially more accurate than Maq's indel | |
769 caller. The pileup format is also changed accordingly. | |
770 | |
771 * Implemented rmdup command: remove potential PCR duplicates. Note that | |
772 this command ONLY works for FR orientation and requires ISIZE is | |
773 correctly set. | |
774 | |
775 * Added fixmate command: fill in mate coordinates, ISIZE and mate | |
776 related flags from a name-sorted alignment. | |
777 | |
778 * Fixed a bug in indexing: reads bridging 16x kbp were not retrieved. | |
779 | |
780 * Allow to select reads shown in the pileup output with a mask. | |
781 | |
782 * Generate GLFv2 from pileup. | |
783 | |
784 * Added two more flags for flagging PCR/optical duplicates and for QC | |
785 failure. | |
786 | |
787 * Fixed a bug in sort command: name sorting for large alignment did not | |
788 work. | |
789 | |
790 * Allow to completely disable RAZF (using Makefile.lite) as some people | |
791 have problem to compile it. | |
792 | |
793 * Fixed a bug in import command when there are reads without | |
794 coordinates. | |
795 | |
796 * Fixed a bug in tview: clipping broke the alignment viewer. | |
797 | |
798 * Fixed a compiling error when _NO_CURSES is applied. | |
799 | |
800 * Fixed a bug in merge command. | |
801 | |
802 Changes in other utilities: | |
803 | |
804 * Added wgsim, a paired-end reads simulator. Wgsim was adapted from | |
805 maq's reads simulator. Colin Hercus further improved it to allow | |
806 longer indels. | |
807 | |
808 * Added wgsim_eval.pl, a script that evaluates the accuracy of | |
809 alignment on reads generated by wgsim. | |
810 | |
811 * Added soap2sam.pl, a SOAP2->SAM converter. This converter does not | |
812 work properly when multiple hits are output. | |
813 | |
814 * Added bowtie2sam.pl, a Bowtie->SAM converter. Only the top hit will | |
815 be retained when multiple hits are present. | |
816 | |
817 * Fixed a bug in export2sam.pl for QC reads. | |
818 | |
819 * Support RG tag at MAQ->SAM converter. | |
820 | |
821 * Added novo2sam.pl, a NovoAlign->SAM converter. Multiple hits and | |
822 indel are not properly handled, though. | |
823 | |
824 * Added zoom2sam.pl, a ZOOM->SAM converter. It only works with the | |
825 default Illumina output. | |
826 | |
827 (0.1.2: 28 January 2008; r116) | |
828 | |
829 | |
830 | |
831 Beta Release 0.1.1 (22 December, 2008) | |
832 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
833 | |
834 The is the first public release of samtools. For more information, | |
835 please check the manual page `samtools.1' and the samtools website | |
836 http://samtools.sourceforge.net |