File age measurements show the distribution of file ages (days since the first commit) and the recency of file updates (days since the latest commit).

Summary

Number of files: 3379
Daily file updates (only one update per file and date counted): 28609
First update: 2000-08-29
Latest update: 2022-01-19
Days between first and latest update: 7814 (1116 weeks, estimated 5580 working days)
Active days (at least one file change): 7148
Data:

Organized per file

File Change History Overall

File Age Distribution Overall

Days since first update

There are 3,379 files with 691,418 lines of code in files.

3,314 files that are 366+ days old (684,091 lines of code)
54 files that are 181-365 days old (6,454 lines of code)
10 files that are 91-180 days old (786 lines of code)
1 files that are 31-90 days old (87 lines of code)
0 files that are 1-30 days old (0 lines of code)

Legend:

366+

181-365

91-180

31-90

1-30

Latest Change Distribution Overall

Days since last update

There are 3,379 files with 691,418 lines of code in files.

1,893 files have been last changed 366+ days ago (187,937 lines of code)
802 files have been last changed 181-365 days ago (132,691 lines of code)
0 files have been last changed 91-180 days ago (0 lines of code)
2 files have been last changed 31-90 days ago (101 lines of code)
682 files have been last changed 1-30 days ago (370,689 lines of code)

Legend:

366+

181-365

91-180

31-90

1-30

File Change History per File Extension

txt, cmake, rst, c, h, cxx, cpp, in, json, hpp, cu, sh, ui, gitattributes, m, bash, py, f90, f, cs, java, bat, mm, d, i, xml, hxx, swift, yml, l, patch, F, plist, asm, hh, cc, hlsl, y, ps1, md, proto, F90, gitignore, xib, html, wxs, clang-tidy, obj, pl, vim, props, js, targets, S, xaml, s, tcl, inc, fpp, css, editorconfig, tex, pike, rb, C, H, nuspec, m4, p, r, CPP, php4, spec, reg, ME, pas, el, clang-format, csproj, h++, desktop, inl, resx, lua

File Age Distribution per Extension

Days since first update

366+

181-365

91-180

31-90

1-30

Latest Change Distribution per Extension

Days since last update

366+

181-365

91-180

31-90

1-30

File Change History per Logical Decomposition

primary

primary (file age distribution)

Days since first update

366+

181-365

91-180

31-90

1-30

primary (latest change distribution)

Days since last update

366+

181-365

91-180

31-90

1-30

Oldest Files (Top 20)

File	# lines	# units	last modified (days ago)	created (days ago)	# changes
cxx cmMakefile.cxx in Source	3656	154	21	7825	1299
cxx cmSystemTools.cxx in Source	2807	113	21	7825	796
cmMakefile.h in Source	623	16	21	7825	745
cmSystemTools.h in Source	278	12	21	7825	431
cxx cmFindLibraryCommand.cxx in Source	445	23	21	7683	206
cxx cmProjectCommand.cxx in Source	348	3	21	7683	169
cxx cmFindProgramCommand.cxx in Source	243	14	187	7683	160
cxx cmIncludeDirectoryCommand.cxx in Source	99	3	21	7683	122
cxx cmLinkDirectoriesCommand.cxx in Source	68	2	21	7683	76
cxx cmAuxSourceDirectoryCommand.cxx in Source	56	1	312	7683	109
cmCommand.h in Source	42	-	21	7683	114
cxx cmSubdirCommand.cxx in Source	40	1	797	7683	67
cxx cmLinkLibrariesCommand.cxx in Source	32	1	676	7683	58
cmFindLibraryCommand.h in Source	27	-	426	7683	84
cmFindProgramCommand.h in Source	21	-	426	7683	76
cmAuxSourceDirectoryCommand.h in Source	7	-	426	7683	64
cmIncludeDirectoryCommand.h in Source	7	-	426	7683	81
cmLinkDirectoriesCommand.h in Source	7	-	426	7683	78
cmLinkLibrariesCommand.h in Source	7	-	426	7683	70
cmProjectCommand.h in Source	7	-	426	7683	80

Files Not Recently Changed (Top 20)

File	# lines	# units	last modified (days ago)	created (days ago)	# changes
ME READ.ME in Source/CursesDialog/form	9	-	7392	7392	1
fld_move.c in Source/CursesDialog/form	12	1	7392	7392	1
fld_ftchoice.c in Source/CursesDialog/form	13	1	7392	7392	1
frm_win.c in Source/CursesDialog/form	14	1	7392	7392	1
frm_sub.c in Source/CursesDialog/form	14	1	7392	7392	1
frm_scale.c in Source/CursesDialog/form	14	1	7392	7392	1
fld_stat.c in Source/CursesDialog/form	15	2	7392	7392	1
frm_cursor.c in Source/CursesDialog/form	16	1	7392	7392	1
fld_page.c in Source/CursesDialog/form	17	2	7392	7392	1
eti.h in Source/CursesDialog/form	18	-	7392	7392	1
fld_arg.c in Source/CursesDialog/form	19	1	7392	7392	1
frm_hook.c in Source/CursesDialog/form	21	-	7392	7392	1
fld_pad.c in Source/CursesDialog/form	22	2	7392	7392	1
fld_just.c in Source/CursesDialog/form	25	2	7392	7392	1
fld_max.c in Source/CursesDialog/form	27	1	7392	7392	1
fld_opts.c in Source/CursesDialog/form	36	4	7392	7392	1
fld_link.c in Source/CursesDialog/form	37	-	7392	7392	1
frm_opts.c in Source/CursesDialog/form	39	4	7392	7392	1
frm_page.c in Source/CursesDialog/form	40	2	7392	7392	1
mf_common.h in Source/CursesDialog/form	43	-	7392	7392	1

Most Recently Created Files (Top 20)

File	# lines	# units	last modified (days ago)	created (days ago)	# changes
sign-notarize.bash in Utilities/Release/macos	87	-	21	59	3
zdict.h in Utilities/cmzstd/lib	110	-	21	110	3
zstd_ldm_geartab.h in Utilities/cmzstd/lib/compress	91	-	21	110	3
zstd_errors.h in Utilities/cmzstd/lib	56	-	21	110	3
zstd_trace.h in Utilities/cmzstd/lib/common	53	-	21	110	3
zstd_deps.h in Utilities/cmzstd/lib/common	49	-	21	110	3
cmake CTestConfig.cmake in Help/guide/tutorial/Step8	6	-	21	126	3
cmValue.h in Source	233	30	21	132	3
cxx cmValue.cxx in Source	109	6	21	132	3
json_features.h in Utilities/cmjsoncpp/include/json	24	-	21	144	3
archive_read_support_filter_by_code.c in Utilities/cmlibarchive/libarchive	55	-	21	160	3
cmake 010-TryOldCentOS.cmake in Modules/Internal/OSRelease	33	-	21	181	3
cmake 020-TryDebianVersion.cmake in Modules/Internal/OSRelease	30	-	21	181	3
cmInstallMode.h in Source	11	-	21	182	3
cxx cmCTestTestMeasurementXMLParser.cxx in Source/CTest	20	2	21	214	5
cmCTestTestMeasurementXMLParser.h in Source/CTest	15	1	21	214	5
cmake FujitsuClang-FindBinUtils.cmake in Modules/Compiler	5	-	187	216	3
elf_common.h in Utilities/cmelf	1206	-	21	222	5
elf64.h in Utilities/cmelf	151	-	21	222	5
elf32.h in Utilities/cmelf	148	-	21	222	5

Most Recently Changed Files (Top 20)

File	# lines	# units	last modified (days ago)	created (days ago)	# changes
cxx cmVisualStudioGeneratorOptions.cxx in Source	401	21	12	4603	160
cxx cmGeneratorTarget.cxx in Source	6513	253	21	3617	697
archive_write_set_format_iso9660.c in Utilities/cmlibarchive/libarchive	6064	1	21	3695	27
zstd_compress.c in Utilities/cmzstd/lib/compress	5002	184	21	1055	11
cxx SystemInformation.cxx in Source/kwsys	4450	142	21	5137	213
cxx cmVisualStudio10TargetGenerator.cxx in Source	4417	115	21	4603	860
cxx cmGlobalXCodeGenerator.cxx in Source	4068	102	21	6216	927
cxx SystemTools.cxx in Source/kwsys	3844	108	21	6873	490
cxx cmMakefile.cxx in Source	3656	154	21	7825	1299
cxx cmLocalGenerator.cxx in Source	3647	115	21	7094	1067
openssl.c in Utilities/cmcurl/lib/vtls	3482	51	21	2672	65
cxx cmFileCommand.cxx in Source	3247	59	21	6783	561
cmake ExternalProject.cmake in Modules	3228	-	21	4604	396
archive_write_disk_posix.c in Utilities/cmlibarchive/libarchive	3226	1	21	3695	38
cxx cmCTest.cxx in Source	3203	123	21	6985	691
archive_string.c in Utilities/cmlibarchive/libarchive	3115	1	21	4476	37
archive_read_support_format_zip.c in Utilities/cmlibarchive/libarchive	3105	1	21	4476	45
cxx cmake.cxx in Source	3055	91	21	7563	1078
http.c in Utilities/cmcurl/lib	3039	41	21	2672	67
cmake Support.cmake in Modules/FindPython	3032	-	21	1439	150