1.3.0 was an update for Team Fortress 2 Classic. It was released on January 3, 2015. It featured some additions and bugfixes. The patch notes are on the archived TF2C Wiki.
And another update. The previous updates have been included.
Fixed Main menu showing the chat
Fixed model size in the class select menu
Changed nail gravity (they now fall down)
Fixed steam avatar size in the scoreboard
Added support for the "Hud Type" keyfield to the tf_gamerules entity
Added support for the AddRedTeamScore and AddBlueTeamScore inputs to the tf_gamerules entity
Added the TF2 Intel glow (disabled by default). To enable, set glow_outline_effect_enable to 1
Added the tf_model_muzzleflash cvar. If set to 1, it will use the old tf2 beta model based muzzleflash, instead of the particle muzzleflash. However, the server admin has to set this to 1.
Changes by 404:
Removal of generic voice lines (files still exist, no real reason to delete them)
Addition of replacement sounds that TF2 uses
Addition of heavy_thanks04.wav