Did they fix the barely working and maintained bridge ecosystem (ie, everything other than IRC)?
I'm someone who ran a Matrix server in the past and got burned by it, the announcement doesn't seem to address any of the issues I encountered running my server or make the UI any more discoverable for non-technical users compared to alternatives like Discord.
It feels more like this 1.0 announcement was done so they could have 1.0 and declare to have done it, without actually fixing the glaring issues in the Matrix ecosystem. At this point, the ActivityPub Ecosystem (Pleroma, Misskey, Mastodon) offers more versatile and user friendly experiences. I hope someone builds a chat server on top of AP.
From the fourth paragraph: "...we have deliberately not focused on performance or features in the 1.0 release - so I’m afraid that synapse’s RAM footprint will not have got significantly better..."
"Crippling resource consumption" is an interesting viewpoint, however - I'm federating to the four largest rooms currently available and using <.75g RAM, so unless you consider every modern browser "crippling"...
This was less than 3 months ago on a fresh install based on Docker with no modifications to the code other than instructed in the installation guide.