Release note of version 1.3.1.9

README.md

@@ -1,94 +1,103 @@
 # MultiPar
 
-v1.3.1.6 is public
+v1.3.1.9 is public
 
- Because my old PC was broken, 
-I upgraded my PC and development environment (to Visual Studio 2019). 
-From this version, my products' supporting OS is Windows Vista or later. 
-As I announced ago, v1.3.0.7 becomes the last stable version, which supports Windows XP. 
+  This is the final release of v1.3.1 tree. 
+There would be no serious problem. 
+While I fixed some rare bugs and improved a bit, it's hard to test all possible cases. 
+When you see a bug, odd incident, or strange behavior, please let me know. 
+I will fix as possible as I can.
 
- This version has two bug fix. 
-At first, I fixed a crash bug, which I happened to put in previous version. 
-Though I tried to reduce using memory at seaching slices, the method was bad. 
-I returned to old simple way, which allocates "block size * 3 times" size buffer. 
-Sometimes I made an unknown bug to solve another problem. 
-If someone sees odd behavior or strange result, please report with ease. 
-Thanks to an anonymous helper. 
+  I tested verification of multiple source files on my new PC. 
+From the result, I set max number of threads for NVMe SSD to 4 threads, 
+when CPU has 6 or more logical cores. 
+This will improve speed at verifying complete source files. 
+(It doesn't affect for PAR files nor damaged files.)  
+SATA SSD : It will verify max 2 files at once.  
+NVMe SSD : It will verify max 3 or 4 files at once.
 
- Another bug was a failure of character encoding, which I found on Windows 10. 
-I never saw such problem on Windows 7, or I was just lucky. 
-It affected only users of multi-bytes characters. 
-While it showed miss-decoded characters in old versions, 
-there was no problem in verification itself. 
-A user might see some odd characters on a file-list. 
-I fixed the bug, and some other slight problems on Windows 10. 
+  When many input file slices are same, their checksums become same, too. 
+There was a bug in my sorting function. 
+Nobody found the error for over than 10 years, and I solved this problem at last. 
+Thanks [NilEinne](https://github.com/Yutaka-Sawada/MultiPar/issues/36) for reporting the very rare incident.
 
- Because I changed whole development environment largely, 
-there may be a compatibility issue. 
-So, this version would be a test of compatibility. 
-When you see a problem, please let me know. 
-I will fix as possible as I can. 
-I plan to refine my code at next version. 
+  When a file includes duplicated data, it's difficult to find slices in proper position. 
+In old versions, it might ignore overlap of slices for speed. 
+Then, it happend to fail finding some slices. 
+I implemented more complex method, and it will work well in most cases. 
+Thanks [swarup459](https://github.com/Yutaka-Sawada/MultiPar/issues/42) for bug report, offering samples, and many tests.
+
+  It's possible to add PAR2 recovery record to a ZIP file. 
+When I wrote the instructions ago, 4 GB over ZIP file was not common so much. 
+Because recent Windows OS supports ZIP64 format, I updated the text for compatibility. 
+You may read the "Add recovery record" page of MultiPar's Help documents. 
+Or, you may read [the article on my web-site](http://hp.vector.co.jp/authors/VA021385/record.htm). 
+Now, MultiPar supports large ZIP file with ZIP64 format. 
+Thanks [Dwaine Gonyier](https://github.com/Yutaka-Sawada/MultiPar/issues/44) for noticing the potential problem.
 
 
-[ Changes from 1.3.1.5 to 1.3.1.6 ]  
+[ Changes from 1.3.1.8 to 1.3.1.9 ]  
 
 Installer update  
-- Inno Setup was updated from v5.6.1 to v6.1.2.  
+- Inno Setup was updated from v6.1.2 to v6.2.0.  
 
 GUI update  
 - Change  
-  - A list-view control has Windows Explorer like Visual Style.  
-  - On a folder selecting dialog, an initial selected folder is always visible.  
+  - Clickable link to access author's page becomes SSL.  
+  - Appending recovery record supports 2 GB over file size.  
+
+PAR2 clients update  
+- Change  
+  - When source files are on NVMe SSD, verification may become faster.  
+  - Appending recovery record supports ZIP64 format.  
+
+- Improvement  
+  - Simple verification will find a short slice in a tiny file.  
 
 - Bug fix  
-  - A rare failure of showing a multi-bytes character on file-list was fixed.  
-
-PAR2 client update  
-- Bug fix  
-  - An access violation error while verifying splited files was fixed.  
+  - A stack overflow problem in quick sort function was removed.  
+  - A bug of searching slices in a file with repeated content was fixed.  
 
 
 [ Hash value ]  
 
-MultiPar1316.zip  
-MD5: B4C60214650BE024CE614474FBB62398  
-SHA1: 26EA790C00B23F81E5D40FADEEC06C26391F7774  
+MultiPar131.zip  
+MD5: EF3486BB39724EF6A4109F5B02D4E027  
+SHA1: D935BFAFF5156C9460FB45639271339D1068F522  
 
-MultiPar1316_setup.exe  
-MD5: 4274B4D2D112653E2879E87D343F551E  
-SHA1: 0068CB9EC0AA24842234484755BD8FBEA46E3149  
+MultiPar131_setup.exe  
+MD5: E2F6EF68AEB9BE0CCDD4D5ABF2A3F318  
+SHA1: C2615960B9B28223BC174FC1175CAAECCC8A713A  
+  To install under "Program Files" or "Program Files (x86)" directory, 
+you must start the installer with administrative privileges by selecting 
+"Run as administrator" on right-click menu.  
 
 
 [ Hash value of other source code packages ]  
- Old versions and source code packages are available at 
+  Old versions and source code packages are available at 
 [GitHub](https://github.com/Yutaka-Sawada/MultiPar/releases) or 
 [OneDrive](https://1drv.ms/u/s!AtGhNMUyvbWOaSo1n_R8awJ_hg0?e=4V0gXu).  
 
-MultiPar_par2j_1316.7z  
-MD5: AA071C65BC7AEE7F866496F00D9D34DA  
-SHA1: 76B3C63547AE1447D2981D07C00DC3BECADEDDBE  
+MultiPar_par2j_1319.7z  
+MD5: 9AC4C38762E2DBF64D6D3A738CD7CCD6  
+SHA1: FFC0DA1A0BBCAD08489C5499154DAA0216E10F51  
 
-MultiPar_par2j_extra_1294.7z  
-MD5: 6D165CDA2645924ACAFE902F02FAD309  
-SHA1: D77D4EA778423D5D8F820B8EAF97F733950F9FB1  
+MultiPar_par1j_1318.7z  
+MD5: F66285403BA0AD856BA6A8CCD922EBF5  
+SHA1: 4CF5D819B16E60F1BBD82415D5F68CB46D3F53C3  
 
-MultiPar_par1j_1314.7z  
-MD5: E082D8A598A262E64CBAE2C42283488A  
-SHA1: F706A3C1FCCAFCE225677BA0785CDB39870206A1  
+MultiPar_sfv_md5_1318.7z  
+MD5: 4E6433808625C088E2773C961BBEBBD2  
+SHA1: 68B54D178BA58637F63CC3E0CC656C96D4472A33  
 
-MultiPar_sfv_md5_1314.7z  
-MD5: 355B0CC6B9613B422126EF9EDAC15F87  
-SHA1: EFD2CF25C47851B86EB12FD5B709BFEEC73AC36D  
+MultiPar_ShlExt_1318.7z  
+MD5: 57E79698A53458681CD19842391A202F  
+SHA1: 646145F1B429C1CF592F907614889C98FBE7E756  
 
-MultiPar_ShlExt_1298.7z  
-MD5: BE0F04DF1A6B936F23F6F01930562248  
-SHA1: 52818266B45ECE135EECFF12D8DA2640A6AD5075  
+MultiPar_ResUI_1319.7z  
+MD5: E03B90A433466C945D726B5A49B4E547  
+SHA1: E30FB11B8F121D44CC1CC368E8D91F06CFC15551  
 
-MultiPar_ResUI_1315.7z  
-MD5: B8B6A9DA4BD9D418CFA90FD01CCC615A  
-SHA1: E5B4B16DBCAECACA2095A64006C117E04D3C9E74  
-
-MultiPar_Help_1316.7z  
-MD5: E2C0E073200754590D9EDAE332CD0462  
-SHA1: A5D8CE73454073B553A7C9F703E5A6CDEDFF7CBD  
+MultiPar_Help_1319.7z  
+MD5: 37547FA074DC24491D1696F6F0DB7452  
+SHA1: 8069C5745F9C7660236F17E3E087B4F7324382ED