Some exciting changes are on the horizon for Physics Forums! This notice is intended to give you a heads up on what to expect in the coming weeks. Plans have now been laid for the coming of Physics Forums 4.0! This will be the biggest improvement to Physics Forums in 12 years. I can't tell you how excited we are to make this happen. It will signal a new age for PF. Speaking of which, we plan to start the migration Sept 19th. Note this is not set in stone. Plenty of communication will occur in the coming weeks. Essentially Physics Forums will be moving software platforms from old vBulletin (4 years old) to modern Xenforo. With this switch comes a host of new features and possibilities. I'll tell you what's in it for you. 1. Loads of new features like: - Alert System (if you've been tagged/quoted, if your thread has been moved etc etc) - Highlight text to quote - User tagging - Multi user PM conversations - LaTeX preview - Like system (replacing Thanks) - Trophy system (community achievements) - New LaTeX enabled chat - Featured Threads - Improved search (no more using Google) - hundreds of little improvements 2. Security and Speed - Moving to 100% SSL - Ability to use latest technologies - Advanced caching for speed 3. New style (yet familiar) - Responsive layout (adapts to screen size) - Fresh, clean, and professional One common question is what data will be migrated. I can assure you, all user, thread, post data is transferred over, along with most other important data. One matter that I do want to stress is that PMs/VMs will be wiped before the migration. Please download any messages you want to save. This can be done at the bottom of the private message list. Furthermore, blog entries will also be removed. Please save your entries. What to expect on migration day The forums will close late Friday, September 19th around 11PM CST -5 GMT. I expect the physical migration to take up to several hours. During this time you may receive a forum closed message, a 404 not found error or possibly something else. Don't fear, I'll be working on it. Overall I would expect PF to be down most of that Saturday. Take the day off and check in on things in the evening. My main priority will be to get the forums open again for members to be able to login, read and post. This is the baseline functionality I want returned before I open the forums. What this means is that for the first day after migration there will be lots of things broken, misconfigured and plenty of changes needed. I need your patience during this time as we work hard to correct issues. We will also be rolling out features slowly over the following day or two after migration. We do this to ensure baseline functionality is not compromised. So perhaps the new forums might even feel incomplete at first, but after a few days everything should be enabled. Some common issues you may come across in the first day or two after migration may be; permission errors (I'll be configuring), login problems (Cookie conflicts), SSL security warnings (Might need some tweaking), 404 messages (URL structure will change for everything). Again, the PF staff is absolutely thrilled to be making this change. PF will reach new heights. We just ask for your patience during this time as we work as hard as possible to keep things running smoothly. Please ask any questions you may have. We'll keep this thread updated constantly when we have new information and notices.