I upgraded an EE site to 2.6.1 yesterday and then Matrix from 2.0.8 to 2.5.5. However when I went to Add-ons > Fieldtypes > Matrix, nothing happened. Isn't there supposed to be an upgrade script?
When I try to edit any entries, I get the following error:
A Database Error Occurred
Error Number: 1054
Unknown column 'is_draft' in 'where clause'
SELECT row_id, col_id_1, col_id_2, col_id_3 FROM exp_matrix_data WHERE field_id = 1 AND entry_id = 3 AND is_draft = 0 ORDER BY row_order ASC
Filename: third_party/matrix/ft.matrix.php
Line Number: 2912
I have tried uploading the Matrix files again and then to upgrade but still doesn't work.