The phrase "a past version" is correct and usable in written English.
It can be used when referring to a previous iteration or state of something, such as a document, software, or a person's thoughts or feelings.
Example: "In order to understand the changes made, we need to compare the current document with a past version."
Alternatives: "a previous version" or "an earlier version".
In other words, if Locke were wandering around the house looking for his iPhone, he would be perfectly happy just from the knowledge that he could remember a past version of himself who could remember where the cellphone was.
After six more years he's had cancer, a heart attack, debilitating shooting pains brought on by a head injury and he's screaming bitterly at a past version of himself for making Henry Winkler cry right before he dies.
I realized that I only had one chance to grow up, and I could either spend it trying to force a life that wasn't working because it fit a past version of myself – the state I'd lived in for six years, the friends I'd known since college, the desire to settle down.
Landline by Rainbow Rowell is the story of a sitcom writer who discovers a magic telephone that lets her communicate with a past version of her husband.
Using various sleights of hand (or perhaps actual time travel? Who's to say for sure) the performers and a small army of unseen stage managers (perhaps that guy with the Chinese takeout really was in on it?) create the impression that you are in touch with a past version of yourself.
A past version misspelled it as Mike.
The Wayback Machine will honor that file and not crawl that site, and it will also, when it comes across a robots.txt, remove all past versions of that site.
A Link Between Worlds – Inside the boss room of Tower of Hera, just like in a Link to the Past version.
In fact, Apple is slowly turning Photos into a solid editor — a change over past versions where it was most a preview/gallery application.
All analyses were conducted using the software PAST version 3.1250.
Statistics were performed using the R statistical package version 2.14.0 and Past Version 3.10 [70].
