[ANNOUNCE] 410k-5

[Pyry Kovanen]

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410k-5 is a minor release aiming to address two issues:

1. Eyre http channels were using way too much memory. Reconnecting to a channel with a few megabytes of base64 encoded images in them would require hundreds of megabytes of loom.
2. Upgrading to 410 from a ship still stuck on 411 was broken since 410k-3.

The release is on ~zod and is propagating across the network now.

Full release notes available at https://github.com/urbit/urbit/releases/tag/410k-5