Update README.md

README.md

@@ -318,7 +318,7 @@ Coming soon (aka a loose roadmap)
 * ~~Node version - probably read-only subset in the first instance~~ It's [here](https://github.com/talis/tripod-node).
 * ~~Improvements to the background queue, currently this is a long running php script working from a queue of updates held in mongo. Only ever intended for the PoC but it's still here 2 years later!~~
 * An alternative persistence technology for the tlog. Memory mapped databases are not good for datasets with rapid turnover as the data files grow even if the data set is pruned. Implement a more specialist append-only database or even a RDBMS for the tlog persistence. Being worked on: [issue](https://github.com/talis/tripod-php/issues/7), [branch](https://github.com/talis/tripod-php/tree/pgsql-tlog) and [PR](https://github.com/talis/tripod-php/pull/6)
-* PHP >5.3.0 only. We still have some legacy servers on PHP 5.2 which is the only reason we continue support.
+* ~~PHP >5.3.0 only. We still have some legacy servers on PHP 5.2 which is the only reason we continue support.~~
 * Performance improvements for ```ExtendedGraph```. The internal structure of this object is a relic from the days of Talis' own proprietary triple store and how it used to return data. We bootstrap onto that using the ```MongoGraph``` object to marshal data in and out. This relies heavily on regex and we know that from our own data gathered in the field this is a single point of optimisation that would cut CPU cycles and memory usage. On the bright side it's nice to have such targeted, low hanging fruit to pick.
 * Versioned config. This will allow views and tables to self-heal when their specs are updated. At present you have to delete and re-gen the lot when specs change.
 * Publish updates to a spout for [Apache Storm](http://storm.incubator.apache.org/)