Copyright (C) 2019, 2020, 2021 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. Changes from 5.1.0 to 5.1.1 --------------------------- 1. Infrastructure upgrades: Bison 3.7.1, Gettext 0.20.2, Automake 1.16.3. 2. asort and asorti now allow FUNCTAB and SYMTAB as the first argument if a second destination array is supplied. Similarly, using either array as the second argument is now a fatal error. Additionally, using either array as the destination for split(), match(), etc. also causes a fatal error. 3. The new -I/--trace option prints a trace of the byte codes as they are executed. 4. A number of subtle bugs relating to MPFR mode that caused differences between regular operation and MPFR mode have been fixed. 5. The API now handles MPFR/GMP values slightly differently, requiring different memory management for those values. See the manual for the details if you have an extension using those values. As a result, the minor version was incremented. 6. $0 and the fields are now cleared before starting a BEGINFILE rule. 7. The duplication of m4 and build-aux directories between the main directory and the extension directory has been removed. This simplifies the distribution. 8. The test suite has been improved, making it easier to run the entire suite with -M. Use `GAWK_TEST_ARGS=-M make check' to do so. 9. Profiling and pretty-printing output has been modified slightly so that functions are presented in a reasonable order with respect to the namespaces that contain them. 10. Several example programs in the manual have been updated to their modern POSIX equivalents. 11. Handling of Infinity and NaN values has been improved. 12. There has been a general tightening up of the use of const and of types. 13. The "no effect" lint warnings have been fixed up and now behave more sanely. 14. The manual has been updated with much more information about what is and is not a bug, and the changes in the gawk mailing lists. 15. There have been numerous minor code cleanups and bug fixes. See the ChangeLog for details. Changes from 5.0.1 to 5.1.0 --------------------------- 1. The major version of the API is bumped to 3, something that should have happened at the 5.0.0 release but didn't. 2. A number of memory leak issues have been fixed. 3. Infrastructure upgrades: Bison 3.5.4, Texinfo 6.7, Gettext 0.20.1, Automake 1.16.2. 4. The indexing in the manual has been thoroughly revised, in particular making use of the facilities in Texinfo 6.7. That version (or newer) must be used to format the manual. 5. MSYS2 is now supported out-of-the-box by configure. 6. Several bugs have been fixed. See the ChangeLog for details. Changes from 5.0.0 to 5.0.1 --------------------------- 1. A number of ChangeLog.1 files that were left out of the distribution have been restored. 2. Multiple syntax errors should no longer be able to cause a core dump. 3. Sandbox mode now disallows assigning new filename values in ARGV that were not there when gawk was invoked. 4. There are many small documentation improvements in the manual. 5. The new argument "no-ext" to --lint disables ``XXX is a gawk extension'' lint warnings. 6. Infrastructure upgrades: Bison 3.4. 7. A number of bugs, some of them quite significant, have been fixed. See the ChangeLog for details. Changes from 4.2.1 to 5.0.0 --------------------------- 1. Support for the POSIX standard %a and %A printf formats has been added. 2. The test infrastructure has been greatly improved, simplifying the contents of test/Makefile.am and making it possible to generate pc/Makefile.tst from test/Makefile.in. 3. The regex routines have been replaced with those from GNULIB, allowing me to stop carrying forward decades of changes against the original ones from GLIBC. 4. Infrastructure upgrades: Bison 3.3, Automake 1.16.1, Gettext 0.19.8.1, makeinfo 6.5. 5. The undocumented configure option and code that enabled the use of non-English "letters" in identifiers is now gone. 6. The `--with-whiny-user-strftime' configuration option is now gone. 7. The code now makes some stronger assumptions about a C99 environment. 8. PROCINFO["platform"] yields a string indicating the platform for which gawk was compiled. 9. Writing to elements of SYMTAB that are not variable names now causes a fatal error. THIS CHANGES BEHAVIOR. 10. Comment handling in the pretty-printer has been reworked almost completely from scratch. As a result, comments in many corner cases that were previously lost are now included in the formatted output. 11. Namespaces have been implemented! See the manual. One consequence of this is that files included with -i, read with -f, and command line program segments must all be self-contained syntactic units. E.g., you can no longer do something like this: gawk -e 'BEGIN {' -e 'print "hello" }' 12. Gawk now uses the locale settings for ignoring case in single byte locales, instead of hardwiring in Latin-1. 13. A number of bugs, some of them quite significant, have been fixed. See the ChangeLog for details.