+20220612
+ + modify waddch_literal() to allow for double-width base character when
+ merging a combining character (report by Gavin Troy).
+ + improve _tracecchar_t2() formatting of base+combining character.
+
+20220604
+ + add note on portable memory-leak checking in man/curs_memleaks.3x
+ + remove u6-u9 from teken-2018 -TD
+ + set "xterm-new" to "xterm-p370", add "xterm-p371" -TD
+
+20220529
+ + expanded notes for teken/syscons -TD
+ + fix overlooked copying of extended string-heap in copy_termtype
+ (cf: 20220430).
+ + update config.guess
+
+20220521
+ + improve memory-leak checking in several test-programs.
+ + set trailing null on string passed from winsnstr() to wins_nwstr().
+ + modify del_curterm() to fix memory-leak introduced by change to
+ copy_termtype().
+
+20220514
+ + further improvements to test/test_mouse.c; compare with ncurses test
+ program menu A/a.
+
+20220507
+ + add test/test_mouse.c (patch by Leonid S Usov).
+ + add a few debug-traces for tic, fix a couple of memory-leaks.
+
+20220501
+ + build-fix for debug-traces (report/patch by Chris Clayton).
+
+20220430
+ + modify samples for xterm mouse 1002/1003 modes to use 1006 mode, and
+ also provide for focus in/out responses -TD
+ + modify default case in handle_wheel() to always report button-release
+ events, e.g., for xterm mouse mode 1003 (patch by Leonid S Usov).
+ + improve valid_entryname() to disallow characters used in terminfo
+ syntax: '#', '=', '|', '\'.
+ + alter copy_termtype() to allocate new str_table and ext_str_table
+ data rather than relying upon its callers.
+ + use calloc in _nc_init_entry() when allocating stringbuf, to ensure
+ it is initialized.
+ + add library-level TYPE_CALLOC for consistency with TYPE_MALLOC.
+ + add some debug-traces for tic/infocmp.
+
+20220423
+ + in-progress work on invalid_merge(), disable it (cf: 20220402).
+ + fix memory leak in _nc_tic_dir() when called from _nc_set_writedir().
+ + fix memory leak in tic when "-c" option is used.
+
+20220416
+ + add a limit-check to guard against corrupt terminfo data
+ (report/testcase by NCNIPC of China).
+ + add check/warning in configure script if option --with-xterm-kbs is
+ missing or inconsistent (Arch #74379).
+ + add setlocale call to several test-programs.
+ + allow extended-color number in opts parameter of wattr_on.
+
+20220409
+ + add test/test_unget_wch.c
+
+20220402
+ + amend extended_captype(), returning CANCEL if a string is explicitly
+ cancelled.
+ + make description-fields distinct -TD
+
+20220326
+ + update teken -TD
+ + add teken-16color, teken-vt and teken-sc -TD
+ + add a few missing details for vte-2018 (report by Robert Lange) -TD
+
+20220319
+ + add xgterm -TD
+ + correct setal in mintty/tmux entries, add to vte-2018 (report by
+ Robert Lange)
+ + add blink to vte-2018 (report by Robert Lange)
+ + improve tic warning about XT versus redundant tsl, etc.
+