The text this council produced is called the Chattha Sangayana edition, the sixth recitation, and it is quietly the most consequential thing any modern Buddhist council has done. Most printed editions of the Pali canon in circulation descend from it. So do the digital corpora: when a scholar searches the Pali canon by computer, or a reader follows a cross-reference in an online translation, the underlying text is usually this one.
That gives a mid twentieth century Burmese collation an authority its makers could not have anticipated. Digitisation rewards whichever text gets digitised first and well, and the Chattha Sangayana text was entered, tagged and released without charge, which put it in front of everyone. Editions with equal or better claims in particular places, the Sri Lankan Buddha Jayanti among them, are less used simply because they were less available.
There is a lesson here that is not confined to Buddhism. A canon can be fixed by a council, and it can also be fixed by whoever controls the reproduction technology of the age, which in the ancient world meant scribes and monasteries and now means file formats and search indexes. The two kinds of fixing are not the same and the second one operates without anybody deciding anything.
The collators worked carefully and the edition is a good one. It is still worth a reader knowing that the version of the canon they are reading has a particular history, a particular set of manuscript preferences behind it, and a national origin.