MongoDB 4.4.19-rc2 is out and is ready for testing. This is a release candidate containing only fixes since 4.4.18. The next stable release 4.4.19 will be a recommended upgrade for all 4.4 users.
Fixed in this release:
4.4 Release Notes
SERVER-68122 Investigate replicating the collection
WiredTiger config string during initial sync
SERVER-70235 Don't create range deletion documents
upon v4.2-v4.4 upgrade in case of collection uuid mismatch
SERVER-71759 dataSize command doesn't yield
SERVER-72222 MapReduce with single reduce
optimization fails when merging results in sharded cluster
SERVER-72535 Sharded clusters allow creating the
'admin', 'local', and 'config' databases with alternative casings
WT-9599 Acquire the hot backup lock to call fallocate in
the block manager
| All Downloads
As always, please let us know of any issues.
-- The MongoDB Team
apparently this RC is the final one which is live in the repo for a couple of days now.
Tonight (2023-02-24 23:17:38 UTC) I updated all my machines, so 4.4.18 went to 4.4.19 and one is a Raspberry Pi 4 running Ubuntu 20.04 64bit, where the database won’t start:
mongod --bind_ip 0.0.0.0 --port 27418 --logpath /data/mongodb/general/logs/log.txt --dbpath /data/mongodb/general/wiredTiger --directoryperdb --storageEngine wiredTiger --wiredTigerDirectoryForIndexes
 19287 illegal hardware instruction (core dumped) mongod --bind_ip 0.0.0.0 --port 27418 --logpath --dbpath --directoryperdb
Reverting to 4.4.18 fixed the issue.
All other databases are on amd64.
Also on all of those other amd64 databases I’m now getting occasional
pymongo.errors.NetworkTimeout errors, something which never happened before.