It looks like it may be time to upgrade your Mac to the latest OS, Mountain Lion(OS X 10.8), which should be here very soon after we saw the gold master developer version release yesterday. One reason to upgrade is that the latest version of Chrome(22.0.1201.0) has just been released on the developer’s page and will not support OS X 10.5 or older.
Looks like you’ll have to stick with the current version of chrome that your using and will have to forgo future updates if you aren’t willing to update your Mac. If you are interested in upgrading, you’ll have to start off by upgrading to Snow Leopard(OS X 10.6), which you can buy for $30 from an Apple store, to gain access to the Mac App store which will have Mountain Lion available for download once it has been released to the general public. Are you still running on Leopard? Do you plan on upgrading? Let us know in the comments section below.