grimwerk: It supports a loose interpretation of what you've stated, but certainly not a strict one.
Some reasons are an unfair basis for giving someone the chop, even new employees.
According to that the length of time during which dismissal isn't an issue has been extended from 6 months to 2 years: Otherwise, an employee must have worked for two 2 years.
And looking at the linked to government site from that article they reference an original period of 1 year changed to 2 years.
The other reasons listed have always been covered albeit by different laws.