* admin/unidata/unidata-gen.el (unidata-file-alist): Update the
default values of 'bidi-class' according to the latest Unicode
Standard.

* admin/notes/unicode: Mention possible changes in
DerivedBidiClass.txt that need to be reflected in unidata-gen.el.

* lisp/international/characters.el (#xfb50, #xfdf0): Fix the
Arabic block characters.  (Bug#55256)

* .gitignore: Ignore idna-mapping.el.

* admin/notes/unicode: Note idna-mapping file.
* admin/unidata/IdnaMappingTable.txt: New file.

* admin/unidata/Makefile.in (all): Generate idna-mapping.el.

* admin/unidata/unidata-gen.el (unidata-gen-idna-mapping): Generate.

* lisp/international/textsec.el (textsec-domain-suspicious-p): New
function.

* admin/notes/unicode: Note the confusables.txt file.
* admin/unidata/Makefile.in (${unidir}/uni-confusable.el):
Generate the confusable file.

* admin/unidata/README (https): Add confusables.txt.

* admin/unidata/confusables.txt: New file.

* admin/unidata/unidata-gen.el (unidata-gen-confusable): Parse the
confusables.txt file.

* lisp/international/textsec.el (textsec-ascii-confusable-p)
(textsec-unconfuse-string): New functions.

836be7a112 ; * etc/refcards/ru-refcard.tex: Update Copyright year.
86cbc6ee4a * lisp/net/tramp-sh.el: Adapt copyright year
ebe8772f65 ; Minor fixes related to copyright years
23c1ee6989 ; * test/manual/etags/ETAGS.good_N: Adjust to copyright ye...
8d3fc7ec89 * src/xfaces.c (face_for_font): Make 'hash' be uintptr_t.
19dcb237b5 ; Add 2022 to copyright years.

# Conflicts:
#	etc/NEWS
#	etc/refcards/ru-refcard.tex
#	lib/cdefs.h
#	lisp/erc/erc-dcc.el
#	lisp/erc/erc-imenu.el
#	lisp/erc/erc-replace.el
#	lisp/image-dired.el
#	lisp/progmodes/xref.el
#	m4/alloca.m4
#	m4/byteswap.m4
#	m4/errno_h.m4
#	m4/getopt.m4
#	m4/gnulib-common.m4
#	m4/inttypes.m4
#	m4/stddef_h.m4
#	m4/stdint.m4
#	m4/sys_socket_h.m4

* etc/NEWS: Fix wording and spelling.

* doc/emacs/mule.texi (Input Methods): Add index entries and fix
wording.

* admin/notes/unicode: Update instructions for updating Emacs for
the latest Unicode Standard.

This covers both sequences using Zero-Width-Joiner codepoints and
those without. Bug#39799, I hope.

* .gitignore: Add emoji-zwj.el
* admin/notes/unicode: Add emoji-zwj-sequences.txt and
emoji-sequences.txt references.  Describe how to test after updating
to a newer Unicode version.
* admin/unidata/Makefile.in (all): add emoji-zwj.el as a dependency.
(emoji-zwj.el): Add target plus rules for building.
(gen-clean): Add emoji-zwj.el.
* admin/unidata/README: Add emoji-zwj-sequences.txt and
emoji-sequences.txt references.
* admin/unidata/blocks.awk: Force emoji script to be used for certain
codepoints that are used by the Unicode sequences.
* admin/unidata/emoji-sequences.txt: New file.
* admin/unidata/emoji-zwj-sequences.txt: New file.
* admin/unidata/emoji-zwj.awk: New file.  Derives
composition-function-table rules from emoji-zwj-sequences.txt, plus
hardcodes some derived manually from emoji-sequences.txt.
* etc/NEWS: Announce change.
* lisp/international/characters.el: Load the generated emoji-zwj.el
* src/Makefile.in (emoji-zwj): New target.
(temacs): Add emoji-zwj as a dependency.

The Emoji property describes which codepoints can be displayed as
emoji, but Emoji_Presentation governs which are displayed as emoji by
default.

* admin/notes/unicode: Adjust check-emoji-coverage to look in the
Emoji_Presentation sections of emoji-data.txt
* admin/unidata/blocks.awk: Assign emoji script using the
Emoji_Presentation section.