What ways are there to watch old replay files? (4 years ago)
You need the replay file, and the game/engine/map file from that time.
Some replays on the site look "deleted" but they are moved into long-term storage. If a replay is somehow very important then you can ask Licho to retrieve it (but you'd better have a good reason for the trouble). Replays that have a comment on them are not moved.
Running a replay from the website, if it is available, should download the game etc automatically. If that doesn't work you could probably build the game and/or the engine package from the code repository manually.
Why is x10 speed in replays not actually x10? My suspicion is that x4 and x5 also are not what they claim to be. Whats causeing this?
It works at x10 just fine for the first few minutes depending on your hardware. Afterwards your machine just can't simulate at 10x speed, same way people can't even run the game at x1 in very dense lobpot and start lagging behind. There might be some way to display the "real" speed but I don't know off the top of my head. There is also some engine bug where it simulates slower than expected
but according to that report it happens on catch-up to a live game (not replay) and regardless it's a bug, not done on purpose.
Yes, some changes don't get mentioned in the text changelog. This is almost always by mistake, so you are free to bring them up and ask/discuss. We generally dilligently try to make the changelog reflect what actually changed.
Yes, sometimes things are left unmentioned on purpose, for example the Maelström or the [REDACTED BY THE OFFICE OF HIGH LORD OBSCURATOR]
. You are still free to discuss these on the forum. Check the iceberg.
No, all code changes are visible on code sites so it is always possible to double-check in the source code.