from RT #33137

3555.	[bug]		Address theoretical race conditions in acache.c
			(change #3553 was incomplete). [RT #33252]

3554.	[bug]		RRL failed to correctly rate-limit upward
			referrals and failed to count dropped error
			responses in the statistics. [RT #33225]

3553.	[bug]		Address suspected double free in acache. [RT #33252]
(cherry picked from commit 11b04b18f8ecb7c0119a7a6b6bbf8f5bad789c9a)

                        [RT# 33280]

3550.	[func]		Unified the internal and export versions of the
			BIND libraries, allowing external clients to use
			the same libraries as BIND. [RT #33131]

3549.	[doc]		Documentation for "request-nsid" was missing.
			[RT #33153]

                        resulting in invalid EDNS options being sent.
                        [RT #33153]

                        detected and rejected. [RT #33129]

(cherry picked from commit 0fe7a2f8)