4607. [bug] The memory context's malloced and maxmalloced counters were being updated without the appropriate lock being held. [RT #44869] 4605. [performance] Improve performance for delegation heavy answers and also general query performance. Removes the acache feature that didn't significantly improve performance. Adds a glue cache. Removes additional-from-cache and additional-from-auth features. Enables minimal-responses by default. Improves performance of compression code, owner case restoration, hash function, etc. Uses inline buffer implementation by default. Many other performance changes and fixes. [RT #44029] 4556. [bug] Sending an EDNS Padding option using "dig +ednsopt" could cause a crash in dig. [RT #44462]