This RFC proposes to remove functionality which has been deprecated during the 5.x cycle.
Unbundle the ext/ereg extension?
Unbundle the ext/mysql extension?
Remove assignment of new by reference?
Remove support for calls from incompatible context?
Remove dl() in fpm-fcgi SAPI?
Remove (set_)magic_quotes_runtime() functions?
Remove listed deprecated functions?
Remove xsl.security_prefs ini directive?
Remove extension specific encoding ini directives?
Remove $is_dst parameter of the mktime() and gmmktime() functions?
Remove support for #-style comments in ini files?
Disallow string category names in setlocale()?
Disallow enabling unsafe curl uploads?
Remove preg_replace() eval modifier?
Remove PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT driver option?
Remove CN_match and SNI_server_name stream context options?