1.6 Modified buffer size approach
1.7 Detect when called from within callbacks
1.8 Allow SSL (HTTPS) to proxy
+ 1.9 Cache negative name resolves
2. libcurl - multi interface
2.1 More non-blocking
...and by Firefox soon:
https://bugzilla.mozilla.org/show_bug.cgi?id=378637
+1.9 Cache negative name resolves
+
+ A name resolve that has failed is likely to fail when made again within a
+ short period of time. Currently we only cache positive responses.
+
+
2. libcurl - multi interface
2.1 More non-blocking