I went through the QAPI schema looking for deprecated stuff not mentioned in qemu-deprecated.texi. Here's what I found:
Commit b33945cfff "block: Accept device model name for blockdev-open/close-tray" (v2.8.0) deprecated blockdev-open-tray, blockdev-close-tray argument @device. Commit 70e2cb3bd7 "block: Accept device model name for blockdev-change-medium" (v2.8.0) deprecated blockdev-change-medium argument @device. Commit 7a9877a026 "block: Accept device model name for block_set_io_throttle" (v2.8.0) deprecated block_set_io_throttle argument @device. Commit c01c214b69 "block: remove all encryption handling APIs" (v2.10.0) deprecated query-named-block-nodes result field encryption_key_missing and query-block result field inserted.encryption_key_missing. Commit c42e8742f5 "block: Use JSON null instead of "" to disable backing file" (v2.10.0) deprecated blockdev-add empty string argument @backing. These were missed in commit eb22aeca65 "docs: document deprecation policy & deprecated features in appendix" (v2.10.0). Commit 3c605f4074 "commit: Add top-node/base-node options" (v3.1.0) deprecated block-commit arguments @base and @top. I can update qemu-deprecated.texi for these. Now my question: I wonder whether we want to remove any of them right away.