What is the latest way to show thoughts in Claude Code? I had to pin 2.1.68 since that seemed to be the last one with thinking shown (even though there wasn't

What is the latest way to show thoughts in Claude Code? I had to pin 2.1.68 since that seemed to be the last one with thinking shown (even though there wasn't anything about it in the following changelog), but I keep hearing that people using newer versions are still able to see it with some flag(s)?