For all but the simplest of websites, a major version upgrade of Drupal is nothing short of daunting. More than likely, you're currently using modules that don't have stable 7.x releases, or perhaps there's no official upgrade path to the 7.x version. Expect to spend a decent chunk of time "massaging" data through the upgrade process.
We're only halfway through upgrading a very large Drupal 6 site (and I plan a full rundown or series when it's complete), but I have a few nuggets of wisdom that may be valuable to those about to embark on the same journey.
Spent a bit of time throwing this chart together. Interesting how dominant CDs have been for so long. Also interesting that no single non-physical medium is dominating the other.
Look, ma! A brand new website built on Drupal 7 using one of them new fancy adaptive themes what makes the website real pretty on those mobile phones. While mostly developer-related (and often Drupal-related specifically), this'll be my primary blogging spot for awhile, and I reckon a few posts completely unrelated to either of those things will make their way in from time to time.
While you're here, you might consider...
Recently at the ol' day job, we got word through our website bugs alias that there was a duplicate version of the website located at a different, garbage URL. Fairly straightforward: someone was mirroring our website via something like a CNAME record and we needed to redirect, at the server level, all traffic from that URL to the correct domain name. More interesting, though, was that at the same time, all of the links embedded within our RSS feed were pointed to the same junk URL.
I'm pleased to announce the beta release of a new module called Flush Page Cache. While it's an extremely useful utility module, I sometimes liken it to the age-old rituals of blowing on a Nintendo cartridge or hitting the side of the TV to get things working again. What it actually does is provide site administrators a handy button that flushes all of the caches for a single page. So if you have a panel that has a view that lists some nodes and you edit one of those nodes, this allows you to quickly and easily flush the cache for the panel page and see fresh content, rather than having to wait for the panel's cache to expire naturally. Operators of larger Drupal sites know that flushing the entire cache can feel like waiting on the tarmac at JFK.