• DMs: line-by-line selection now shows “|” on the current message line for easier scrolling.
• Ping: new Ping screen (Enter toggles ON/OFF). Auto‑reply “pong” with 60s rate limit — DMs respond to “ping”, channels respond only to @mention, @[nickname].
• Messages: reverted ordering so newest appears at the bottom (arrival order/sequence).
• T9: long‑press Enter now toggles caps lock (stays uppercase until toggled off); 123/!@# cycle without a timeout; Back deletes a char and double‑Back exits compose.
• T9: symbol set expanded to include full keyboard punctuation (~ [] {} | etc.).
• Channels: @ marker no longer inverts nickname colors; only the marker indicates selection.
• T9: Back exits compose directly; SPC/DEL shows “_” (space) or “” preview in the compose text.
• T9: SPC is space, DEL is delete, and 123/!@# toggles digits vs symbols via long‑press.
• T9: 123/!@# key label now shows the active mode (123 or !@#).