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OpenClaw 4.20 and 4.21: Kimi K2.6 Default, GPT Image 2, and Another Auth Hole Patched
OpenClaw 4.20 brings Kimi K2.6 as default and a stack of infrastructure fixes, but broke Telegram runtimes and wiped API keys for some users. 4.21 landed seven hours later with GPT Image 2 and a second auth vulnerability patch in two months, confirming the usual pattern: upgrade, break things, hotfix before breakfast.