IDLE warns against an old TCL version even though I've installed a newer version

Question

I have installed ActiveTcl8.6.1.1.297588-macosx10.5-i386-x86_64-threaded on my OS X 10.9.1 . However, when I launch IDLE by running idle3 from the

Answer 1

I have OS X 10.10.5.

1. I installed Python 3.4.3.
2. Ran IDLE, got warning, "The version of Tcl/Tk (8.5.9) in use may be unstable."
3. Went to [Active State][1] and downloaded the suggested, "Download ActiveTcl 8.6.4 for Mac OS X (10.5+, x86_64/x86)".
4. Ran installer for "ActiveTcl8.6.4.1.299124-macosx10.5-i386-x86_64-threaded.dmg"
5. Re-installed: python-3.4.3-macosx10.6.pkg
6. Ran IDLE - still same message, "The version of Tcl/Tk (8.5.9) in use may be unstable.".
7. Checked - Yes, 8.6.4 is there.
8. Went back to Active State and got prior version: "ActiveTcl8.5.18.0.298892-macosx10.5-i386-x86_64-threaded.dmg"
9. Re-installed: python-3.4.3-macosx10.6.pkg
10. Ran IDLE - No warning.