Federal bills are typically published at first reading, as amended by committees, as passed by the House of Commons, and on Royal Assent.
Ontario bills are published at first reading, after amendment by Committee, and upon Royal Assent as individual chapters.
After a bill has received Royal Assent, it is assigned a chapter number (which has no relation to bill number), and printed as a final version of the bill.
In addition to the obvious names of amending bills, be aware of:
LEGISinfo - gives the text of the bill at various stages, legislative summaries, important speeches at second reading, votes, and coming into force data.
The Ontario Legislative Assembly's Legislative Business - Bills contains information on bills and the status of legislation. Here you will find an indexed listing of all the government bills, private members' public bills and private bills introduced in the Ontario Legislature during the current session showing dates of readings, referral to committees, dates of consideration, Royal Assent and proclamations, where applicable. Copies of current and previous versions of the bill are available from this site.
Electronic versions of both Ontario statutes on E-laws and federal statutes on justice.gc.ca (see O Reg 413/08 and the Legislation Revision and Consolidation Act, RSC 1985, c S-20, s 31) are now official. However, print sources may still be the official means to find and update other jurisdictions' statutes. In reality, it is most effective to use a combination of resources to find the information you need. There are many ways to access the same information and it is to a student's benefit to become familiar with all of these. In this way you will be prepared to work in any environment (electronic or print) in which you may find yourself.