Holders of an Oxford SSO are recommended to use one of the subscription databases listed below, as they are better able to keep up with amendments as well as giving you links to related case law and commentary.
The second to last link below is to freely available, official UK government platform for modern legislation. It is a reliable source for the historic version (the text of act as originally promulgated) but may sometimes lag behind with keeping up with amendments, repeals etc. It does have a special search function to try to help find subsequent changes. It also normally