Deprecated in Perl 5.10.0
+The ticket for this feature is
+L<[perl #119313]|https://rt.perl.org/rt3/Ticket/Display.html?id=119313>.
+
=item Smart match (C<~~>)
Introduced in Perl 5.10.0
Using this feature triggers warnings in the category
C<experimental::smartmatch>.
-=item Lexical C<$_>
-
-Introduced in Perl 5.10.0
-
-Using this feature triggers warnings in the category
-C<experimental::lexical_topic>.
+The ticket for this feature is
+L<[perl #119317]|https://rt.perl.org/rt3/Ticket/Display.html?id=119317>.
=item Pluggable keywords
-See L<perlapi/PL_keyword_plugin> for the mechanism.
-
-Introduced in: Perl 5.11.2
-
-=item Array and hash container functions accept references
-
-Introduced in Perl 5.14.0
-
-=item Lexical subroutines
+The ticket for this feature is
+L<[perl #119455]|https://rt.perl.org/rt3/Ticket/Display.html?id=119455>.
-Introduced in: Perl 5.18
+See L<perlapi/PL_keyword_plugin> for the mechanism.
-See also: L<perlsub/Lexical Subroutines>
-
-Using this feature triggers warnings in the category
-C<experimental::lexical_subs>.
+Introduced in Perl 5.11.2
=item Regular Expression Set Operations
-Introduced in: Perl 5.18
+Introduced in Perl 5.18
+
+The ticket for this feature is
+L<[perl #119451]|https://rt.perl.org/rt3/Ticket/Display.html?id=119451>.
See also: L<perlrecharclass/Extended Bracketed Character Classes>
Using this feature triggers warnings in the category
C<experimental::regex_sets>.
-=item C<\s> in regexp matches vertical tab
-
-Introduced in Perl 5.18
-
-=item The <:win32> IO pseudolayer
-
-See also L<perlrun>
-
-=item internal functions with M flag
-
-See also L<perlguts>
-
-=item lex_start API
-
-Introduced in Perl 5.13.7
-
-=item internal API for C<%^H>
-
-Introduced in Perl 5.13.7
-
-See also C<cophh_> in L<perlapi>.
-
-=item alloccopstash
-
-Introduced in Perl 5.18.0
-
-=item av_create_and_push
-
-=item av_create_and_unshift_one
-
-=item av_create_and_unshift_one
-
-=item cop_store_label
-
-Introduced in Perl 5.16.0
-
-=item PL_keyword_plugin
+=item Subroutine signatures
-=item gv_fetchmethod_*_flags
+Introduced in Perl 5.20.0
-Introduced in Perl 5.16.0
-
-=item hv_iternext_flags
+Using this feature triggers warnings in the category
+C<experimental::signatures>.
-=item lex_bufutf8
+The ticket for this feature is
+L<[perl #121481]|https://rt.perl.org/Ticket/Display.html?id=121481>.
-=item lex_discard_to
+=item Aliasing via reference
-=item lex_grow_linestr
+Introduced in Perl 5.22.0
-=item lex_next_chunk
+Using this feature triggers warnings in the category
+C<experimental::refaliasing>.
-=item lex_peek_unichar
+The ticket for this feature is
+L<[perl #122947]|https://rt.perl.org/rt3/Ticket/Display.html?id=122947>.
-=item lex_read_space
+See also: L<perlref/Assigning to References>
-=item lex_read_to
+=item The "const" attribute
-=item lex_read_unichar
+Introduced in Perl 5.22.0
-=item lex_stuff_pv
+Using this feature triggers warnings in the category
+C<experimental::const_attr>.
-=item lex_stuff_pvn
+The ticket for this feature is
+L<[perl #123630]|https://rt.perl.org/rt3/Ticket/Display.html?id=123630>.
-=item lex_stuff_pvs
+See also: L<perlsub/Constant Functions>
-=item lex_stuff_sv
+=item use re 'strict';
-=item lex_unstuff
+Introduced in Perl 5.22.0
-=item op_scope
+Using this feature triggers warnings in the category
+C<experimental::re_strict>.
-=item op_lvalue
+See L<re/'strict' mode>
-=item parse_fullstmt
+=item String- and number-specific bitwise operators
-=item parse_stmtseq
+Introduced in Perl 5.22.0
-=item PL_parser-E<gt>bufend
+See also: L<perlop/Bitwise String Operators>
-=item PL_parser-E<gt>bufptr
+Using this feature triggers warnings in the category
+C<experimental::bitwise>.
-=item PL_parser-E<gt>linestart
+The ticket for this feature is
+L<[perl #123707]|https://rt.perl.org/rt3/Ticket/Display.html?id=123707>.
-=item PL_parser-E<gt>linestr
+=item The <:win32> IO pseudolayer
-=item Perl_signbit
+The ticket for this feature is
+L<[perl #119453]|https://rt.perl.org/rt3/Ticket/Display.html?id=119453>.
-=item pad_findmy
+See also L<perlrun>
-=item sv_utf8_decode
+=item Declaring a reference to a variable
-=item sv_utf8_downgrade
+Introduced in Perl 5.26.0
-=item bytes_from_utf8
+Using this feature triggers warnings in the category
+C<experimental::declared_refs>.
-=item bytes_to_utf8
+The ticket for this feature is
+L<[perl #128654]|https://rt.perl.org/rt3/Ticket/Display.html?id=128654>.
-=item utf8_to_bytes
+See also: L<perlref/Declaring a Reference to a Variable>
=item There is an C<installhtml> target in the Makefile.
-=item Unicode in Perl on EBCDIC
-
-See also: L<perlre/"Special Backtracking Control Verbs">
+The ticket for this feature is
+L<[perl #116487]|https://rt.perl.org/rt3/Ticket/Display.html?id=116487>.
-=item Code expressions, conditional expressions, and independent expressions in regexes
-
-=item gv_try_downgrade
-
-See also L<perlintern>
-
-=item Experimental Support for Sun Studio Compilers for Linux OS
-
-See also L<perllinux>
+=item Unicode in Perl on EBCDIC
=back
C<(*ACCEPT)>
-Introduced in: Perl 5.10
+Introduced in Perl 5.10
Accepted in Perl 5.20.0
Accepted in Perl 5.20.0
+=item C<\s> in regexp matches vertical tab
+
+Accepted in Perl 5.22.0
+
+=item Postfix dereference syntax
+
+Introduced in Perl 5.20.0
+
+Accepted in Perl 5.24.0
+
+=item Lexical subroutines
+
+Introduced in Perl 5.18.0
+
+Accepted in Perl 5.26.0
+
=back
=head2 Removed features
The experimental C<legacy> pragma was swallowed by the C<feature> pragma.
-Introduced in: 5.11.2
+Introduced in Perl 5.11.2
+
+Removed in Perl 5.11.3
-Removed in: 5.11.3
+=item Lexical C<$_>
+
+Using this feature triggered warnings in the category
+C<experimental::lexical_topic>.
+
+Introduced in Perl 5.10.0
+
+Removed in Perl 5.24.0
+
+=item Array and hash container functions accept references
+
+Using this feature triggered warnings in the category
+C<experimental::autoderef>.
+
+Superseded by L</Postfix dereference syntax>.
+
+Introduced in Perl 5.14.0
+
+Removed in Perl 5.24.0
=back
+=head1 SEE ALSO
+
+For a complete list of features check L<feature>.
+
=head1 AUTHORS
brian d foy C<< <brian.d.foy@gmail.com> >>
https://perl5.git.perl.org / perl5.git / blobdiff