I accidentally deleted my bitcoin and wallet years ago after freeing up space on my hard drive. I have not used this computer much since then. The 2010 MacBook Pro works fine. I thought I had backed it up when I ran parrelels with windows xp on this machine. However, I deleted parrelels and windows xp from the machine and the backup. I haven’t done anything else on this machine until I can find out if any trace still exists. Is there anyway to find out if they are on the hard drive still? Any feedback is appreciated. Thank you.
You have a (very) slim chance that your wallet is still available somewhere on the disk. First of all, stop using your computer. The more you use your computer, the larger the possibility that your wallet is overwritten. If possible move your HD to another computer. Then install one of the existing programs for recovery of deleted files on this new computer (on his old disc, not on the moved disc with deleted wallet). There are some solutions on the market but cannot talk about them since i never used any of them. If you're lucky, your wallet might still be intact since the deletion just removes the reference to the file but not the file itself. But if even a single bit is changed on that file, you will not be able to recover it. Good luck.
you should email yourself your private keys and pass phrase.or whatever other information. even if your computer gets destroyed you can still recover your email from a different device
This is very bad advice for one simple reason - anyone who has the access to your mail also has the access to your funds. You have to backup passphrase and private keys, but mailing them is the last possible way you should do it.
I guess I'll wait to download the blocks one last time and find a new wallet? It does not seem like much else could be done with in reason. 
Something like this should be included in the release notes though. (Weird however because the issue didn't happen the first time I opened the client after the upgrade.) 
