diff --git a/.hgtags b/.hgtags
index f0a7f11..a6e8fed 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1 +1,2 @@
 cb01bf174b05b1590258d6c996b89f60ebd88e5a v0.6
+c2526dce0768f11e6bf88afb641a6a9058fa685c v0.6.1
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 5ee078f..399f1b8 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,4 +1,7 @@
-0.6.1 (xxxxxxx)
+0.6.2 (XXXX-XX-XX)
+---------------------------
+
+0.6.1 (2011-02-11)
 ---------------------------
 
 Features
@@ -7,26 +10,31 @@ Features
 - implemented columns adding with unique constraints for sqlite
 - implemented adding unique and foreign key constraints to columns
   for sqlite
-
+- remove experimental `alter_metadata` parameter
 
 Fixed bugs
 ******************
 
 - updated tests for Python 2.7
+- repository keyword in :func:`api.version_control` can also be unicode
 - added if main condition for manage.py script
+- make :func:`migrate.changeset.constraint.ForeignKeyConstraint.autoname`
+  work with SQLAlchemy 0.5 and 0.6
 - fixed case sensitivity in setup.py dependencies
 - moved :mod:`migrate.changeset.exceptions` and :mod:`migrate.versioning.exceptions`
   to :mod:`migrate.exceptions`
-- cleared up test output and improved testing of deprecation warnings.
+- cleared up test output and improved testing of deprecation warnings. 
 - some documentation fixes
-- fixed bug with column dropping in sqlite (issue 96)
+- #107: fixed syntax error in genmodel.py 
+- #96: fixed bug with column dropping in sqlite
+- #94: fixed bug that prevented non-unique indexes being created
 - fixed bug with column dropping involving foreign keys
-- fixed bug that prevented non-unique indexes being created (issue 94)
 - fixed bug when dropping columns with unique constraints in sqlite
 - rewrite of the schema diff internals, now supporting column
   differences in additon to missing columns and tables.
 - fixed bug when passing empty list in
   :func:`migrate.versioning.shell.main` failed 
+- #108: Fixed issues with firebird support.
 
 0.6 (11.07.2010)
 ---------------------------
diff --git a/docs/conf.py b/docs/conf.py
index e49fcce..b8346bb 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -47,16 +47,16 @@ master_doc = 'index'
 
 # General information about the project.
 project = u'SQLAlchemy Migrate'
-copyright = u'2010, Evan Rosson, Jan Dittberner, Domen Kožar'
+copyright = u'2011, Evan Rosson, Jan Dittberner, Domen Kožar, Chris Withers'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
 # The short X.Y version.
-version = '0.6'
+version = '0.6.2'
 # The full version, including alpha/beta/rc tags.
-release = '0.6'
+release = '0.6.2'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/migrate/changeset/databases/firebird.py b/migrate/changeset/databases/firebird.py
index f880035..675666c 100644
--- a/migrate/changeset/databases/firebird.py
+++ b/migrate/changeset/databases/firebird.py
@@ -2,7 +2,7 @@
    Firebird database specific implementations of changeset classes.
 """
 from sqlalchemy.databases import firebird as sa_base
-
+from sqlalchemy.schema import PrimaryKeyConstraint
 from migrate import exceptions
 from migrate.changeset import ansisql, SQLA_06
 
@@ -27,13 +27,32 @@ class FBColumnDropper(ansisql.ANSIColumnDropper):
             if column.table.primary_key.columns.contains_column(column):
                 column.table.primary_key.drop()
                 # TODO: recreate primary key if it references more than this column
-        if column.unique or getattr(column, 'unique_name', None):
-            for cons in column.table.constraints:
-                if cons.contains_column(column):
-                    cons.drop()
-                    # TODO: recreate unique constraint if it refenrences more than this column
 
-        table = self.start_alter_table(column)
+        for index in column.table.indexes:
+            # "column in index.columns" causes problems as all
+            # column objects compare equal and return a SQL expression
+            if column.name in [col.name for col in index.columns]:
+                index.drop()
+                # TODO: recreate index if it references more than this column
+        
+        for cons in column.table.constraints:
+            if isinstance(cons,PrimaryKeyConstraint):
+                # will be deleted only when the column its on
+                # is deleted!
+                continue
+
+            if SQLA_06:
+                should_drop = column.name in cons.columns
+            else:
+                should_drop = cons.contains_column(column) and cons.name
+            if should_drop:
+                self.start_alter_table(column)
+                self.append("DROP CONSTRAINT ")
+                self.append(self.preparer.format_constraint(cons))
+                self.execute()
+            # TODO: recreate unique constraint if it refenrences more than this column
+
+        self.start_alter_table(column)
         self.append('DROP %s' % self.preparer.format_column(column))
         self.execute()
 
diff --git a/migrate/changeset/databases/sqlite.py b/migrate/changeset/databases/sqlite.py
index 66a8f5a..447412d 100644
--- a/migrate/changeset/databases/sqlite.py
+++ b/migrate/changeset/databases/sqlite.py
@@ -80,10 +80,17 @@ class SQLiteColumnDropper(SQLiteHelper, ansisql.ANSIColumnDropper):
     """SQLite ColumnDropper"""
 
     def _modify_table(self, table, column, delta):
+        
         columns = ' ,'.join(map(self.preparer.format_column, table.columns))
         return 'INSERT INTO %(table_name)s SELECT ' + columns + \
             ' from migration_tmp'
 
+    def visit_column(self,column):
+        # For SQLite, we *have* to remove the column here so the table
+        # is re-created properly.
+        column.remove_from_table(column.table,unset_table=False)
+        super(SQLiteColumnDropper,self).visit_column(column)
+
 
 class SQLiteSchemaChanger(SQLiteHelper, ansisql.ANSISchemaChanger):
     """SQLite SchemaChanger"""
diff --git a/migrate/changeset/schema.py b/migrate/changeset/schema.py
index ef8dd85..75cd3fd 100644
--- a/migrate/changeset/schema.py
+++ b/migrate/changeset/schema.py
@@ -29,9 +29,6 @@ __all__ = [
     'ColumnDelta',
 ]
 
-DEFAULT_ALTER_METADATA = True
-
-
 def create_column(column, table=None, *p, **kw):
     """Create a column, given the table.
     
@@ -109,19 +106,11 @@ def alter_column(*p, **k):
       The :class:`~sqlalchemy.engine.base.Engine` to use for table
       reflection and schema alterations.
     
-    :param alter_metadata:
-      If `True`, which is the default, the
-      :class:`~sqlalchemy.schema.Column` will also modified.
-      If `False`, the :class:`~sqlalchemy.schema.Column` will be left
-      as it was.
-    
     :returns: A :class:`ColumnDelta` instance representing the change.
 
     
     """
     
-    k.setdefault('alter_metadata', DEFAULT_ALTER_METADATA)
-
     if 'table' not in k and isinstance(p[0], sqlalchemy.Column):
         k['table'] = p[0].table
     if 'engine' not in k:
@@ -135,6 +124,12 @@ def alter_column(*p, **k):
             MigrateDeprecationWarning
             )
     engine = k['engine']
+
+    # enough tests seem to break when metadata is always altered
+    # that this crutch has to be left in until they can be sorted
+    # out
+    k['alter_metadata']=True
+    
     delta = ColumnDelta(*p, **k)
 
     visitorcallable = get_engine_visitor(engine, 'schemachanger')
@@ -188,11 +183,10 @@ class ColumnDelta(DictMixin, sqlalchemy.schema.SchemaItem):
         :param table: Table at which current Column should be bound to.\
         If table name is given, reflection will be used.
         :type table: string or Table instance
-        :param alter_metadata: If True, it will apply changes to metadata.
-        :type alter_metadata: bool
-        :param metadata: If `alter_metadata` is true, \
-        metadata is used to reflect table names into
-        :type metadata: :class:`MetaData` instance
+        
+        :param metadata: A :class:`MetaData` instance to store
+                         reflected table names
+                         
         :param engine: When reflecting tables, either engine or metadata must \
         be specified to acquire engine object.
         :type engine: :class:`Engine` instance
@@ -213,7 +207,11 @@ class ColumnDelta(DictMixin, sqlalchemy.schema.SchemaItem):
     __visit_name__ = 'column'
 
     def __init__(self, *p, **kw):
+        # 'alter_metadata' is not a public api. It exists purely
+        # as a crutch until the tests that fail when 'alter_metadata'
+        # behaviour always happens can be sorted out
         self.alter_metadata = kw.pop("alter_metadata", False)
+        
         self.meta = kw.pop("metadata", None)
         self.engine = kw.pop("engine", None)
 
@@ -237,9 +235,11 @@ class ColumnDelta(DictMixin, sqlalchemy.schema.SchemaItem):
         self.apply_diffs(diffs)
 
     def __repr__(self):
-        return '<ColumnDelta altermetadata=%r, %s>' % (self.alter_metadata,
-            super(ColumnDelta, self).__repr__())
-
+        return '<ColumnDelta altermetadata=%r, %s>' % (
+            self.alter_metadata,
+            super(ColumnDelta, self).__repr__()
+            )
+    
     def __getitem__(self, key):
         if key not in self.keys():
             raise KeyError("No such diff key, available: %s" % self.diffs )
@@ -395,7 +395,6 @@ class ColumnDelta(DictMixin, sqlalchemy.schema.SchemaItem):
             self._table = table
             if not self.alter_metadata:
                 self._table.meta = sqlalchemy.MetaData(bind=self._table.bind)
-
     def _get_result_column(self):
         return getattr(self, '_result_column', None)
 
@@ -456,22 +455,18 @@ class ChangesetTable(object):
 
         :param name: New name of the table.
         :type name: string
-        :param alter_metadata: If True, table will be removed from metadata
-        :type alter_metadata: bool
         :param connection: reuse connection istead of creating new one.
         :type connection: :class:`sqlalchemy.engine.base.Connection` instance
         """
-        self.alter_metadata = kwargs.pop('alter_metadata', DEFAULT_ALTER_METADATA)
         engine = self.bind
         self.new_name = name
         visitorcallable = get_engine_visitor(engine, 'schemachanger')
         run_single_visitor(engine, visitorcallable, self, connection, **kwargs)
 
         # Fix metadata registration
-        if self.alter_metadata:
-            self.name = name
-            self.deregister()
-            self._set_parent(self.metadata)
+        self.name = name
+        self.deregister()
+        self._set_parent(self.metadata)
 
     def _meta_key(self):
         return sqlalchemy.schema._get_table_key(self.name, self.schema)
@@ -510,7 +505,6 @@ class ChangesetColumn(object):
 `~migrate.changeset.constraint.UniqueConstraint` on this column.
         :param primary_key_name: Creates :class:\
 `~migrate.changeset.constraint.PrimaryKeyConstraint` on this column.
-        :param alter_metadata: If True, column will be added to table object.
         :param populate_default: If True, created column will be \
 populated with defaults
         :param connection: reuse connection istead of creating new one.
@@ -518,22 +512,19 @@ populated with defaults
         :type index_name: string
         :type unique_name: string
         :type primary_key_name: string
-        :type alter_metadata: bool
         :type populate_default: bool
         :type connection: :class:`sqlalchemy.engine.base.Connection` instance
 
         :returns: self
         """
         self.populate_default = populate_default
-        self.alter_metadata = kwargs.pop('alter_metadata', DEFAULT_ALTER_METADATA)
         self.index_name = index_name
         self.unique_name = unique_name
         self.primary_key_name = primary_key_name
         for cons in ('index_name', 'unique_name', 'primary_key_name'):
             self._check_sanity_constraints(cons)
 
-        if self.alter_metadata:
-            self.add_to_table(table)
+        self.add_to_table(table)
         engine = self.table.bind
         visitorcallable = get_engine_visitor(engine, 'columngenerator')
         engine._run_visitor(visitorcallable, self, connection, **kwargs)
@@ -550,21 +541,16 @@ populated with defaults
 
         ``ALTER TABLE DROP COLUMN``, for most databases.
 
-        :param alter_metadata: If True, column will be removed from table object.
-        :type alter_metadata: bool
         :param connection: reuse connection istead of creating new one.
         :type connection: :class:`sqlalchemy.engine.base.Connection` instance
         """
-        self.alter_metadata = kwargs.pop('alter_metadata', DEFAULT_ALTER_METADATA)
         if table is not None:
             self.table = table
         engine = self.table.bind
-        if self.alter_metadata:
-            self.remove_from_table(self.table, unset_table=False)
         visitorcallable = get_engine_visitor(engine, 'columndropper')
         engine._run_visitor(visitorcallable, self, connection, **kwargs)
-        if self.alter_metadata:
-            self.table = None
+        self.remove_from_table(self.table, unset_table=False)
+        self.table = None
         return self
 
     def add_to_table(self, table):
@@ -643,18 +629,14 @@ class ChangesetIndex(object):
 
         :param name: New name of the Index.
         :type name: string
-        :param alter_metadata: If True, Index object will be altered.
-        :type alter_metadata: bool
         :param connection: reuse connection istead of creating new one.
         :type connection: :class:`sqlalchemy.engine.base.Connection` instance
         """
-        self.alter_metadata = kwargs.pop('alter_metadata', DEFAULT_ALTER_METADATA)
         engine = self.table.bind
         self.new_name = name
         visitorcallable = get_engine_visitor(engine, 'schemachanger')
         engine._run_visitor(visitorcallable, self, connection, **kwargs)
-        if self.alter_metadata:
-            self.name = name
+        self.name = name
 
 
 class ChangesetDefaultClause(object):
diff --git a/migrate/tests/changeset/test_changeset.py b/migrate/tests/changeset/test_changeset.py
index 5c06ef2..2b50922 100644
--- a/migrate/tests/changeset/test_changeset.py
+++ b/migrate/tests/changeset/test_changeset.py
@@ -262,7 +262,6 @@ class TestAddDropColumn(fixture.DB):
 
         self._check_index(False)
 
-        Index('ix_data', col).drop(bind=self.engine)
         col.drop()
         
     @fixture.usedb()
@@ -284,7 +283,6 @@ class TestAddDropColumn(fixture.DB):
 
         self._check_index(True)
 
-        Index('ix_data', col).drop(bind=self.engine)
         col.drop()
         
     @fixture.usedb()
@@ -424,7 +422,8 @@ class TestAddDropColumn(fixture.DB):
             Column('r1', Integer),
             Column('r2', Integer),
             ForeignKeyConstraint(['r1','r2'],
-                                 [reftable.c.id,reftable.c.jd])
+                                 [reftable.c.id,reftable.c.jd],
+                                 name='test_fk')
             )
         self.table.create()
 
@@ -705,20 +704,6 @@ class TestColumnChange(fixture.DB):
         finally:
             cw.__exit__()
             
-    @fixture.usedb()
-    def test_alter_metadata(self):
-        """Test if alter_metadata is respected"""
-
-        self.table.c.data.alter(type=String(100))
-
-        self.assert_(isinstance(self.table.c.data.type, String))
-        self.assertEqual(self.table.c.data.type.length, 100)
-
-        # nothing should change
-        self.table.c.data.alter(type=String(200),alter_metadata=False)
-        self.assert_(isinstance(self.table.c.data.type, String))
-        self.assertEqual(self.table.c.data.type.length, 100)
-
     @fixture.usedb()
     def test_alter_returns_delta(self):
         """Test if alter constructs return delta"""
@@ -742,8 +727,7 @@ class TestColumnChange(fixture.DB):
         kw = dict(nullable=False,
                  server_default='foobar',
                  name='data_new',
-                 type=String(50),
-                 alter_metadata=True)
+                 type=String(50))
         if self.engine.name == 'firebird':
             del kw['nullable']
         self.table.c.data.alter(**kw)
@@ -840,23 +824,17 @@ class TestColumnDelta(fixture.DB):
         self.verify([], self.mkcol(server_default='foobar'), self.mkcol('id', String, DefaultClause('foobar')))
         self.verify(['type'], self.mkcol(server_default='foobar'), self.mkcol('id', Text, DefaultClause('foobar')))
 
-        # test alter_metadata
         col = self.mkcol(server_default='foobar')
         self.verify(['type'], col, self.mkcol('id', Text, DefaultClause('foobar')), alter_metadata=True)
         self.assert_(isinstance(col.type, Text))
 
         col = self.mkcol()
-        self.verify(['name', 'server_default', 'type'], col, self.mkcol('beep', Text, DefaultClause('foobar')), alter_metadata=True)
+        self.verify(['name', 'server_default', 'type'], col, self.mkcol('beep', Text, DefaultClause('foobar')),
+                    alter_metadata=True)
         self.assert_(isinstance(col.type, Text))
         self.assertEqual(col.name, 'beep')
         self.assertEqual(col.server_default.arg, 'foobar')
 
-        col = self.mkcol()
-        self.verify(['name', 'server_default', 'type'], col, self.mkcol('beep', Text, DefaultClause('foobar')), alter_metadata=False)
-        self.assertFalse(isinstance(col.type, Text))
-        self.assertNotEqual(col.name, 'beep')
-        self.assertFalse(col.server_default)
-
     @fixture.usedb()
     def test_deltas_zero_columns(self):
         """Testing ColumnDelta with zero columns"""
@@ -867,24 +845,18 @@ class TestColumnDelta(fixture.DB):
         self.verify(['type'], 'ids', table=self.table.name, type=String(80), engine=self.engine)
         self.verify(['type'], 'ids', table=self.table.name, type=String(80), metadata=self.meta)
 
-        # check if alter_metadata is respected
         self.meta.clear()
-        delta = self.verify(['type'], 'ids', table=self.table.name, type=String(80), alter_metadata=True, metadata=self.meta)
+        delta = self.verify(['type'], 'ids', table=self.table.name, type=String(80), metadata=self.meta,
+                            alter_metadata=True)
         self.assert_(self.table.name in self.meta)
         self.assertEqual(delta.result_column.type.length, 80)
         self.assertEqual(self.meta.tables.get(self.table.name).c.ids.type.length, 80)
 
-        self.meta.clear()
-        self.verify(['type'], 'ids', table=self.table.name, type=String(80), alter_metadata=False, engine=self.engine)
-        self.assert_(self.table.name not in self.meta)
-
-        self.meta.clear()
-        self.verify(['type'], 'ids', table=self.table.name, type=String(80), alter_metadata=False, metadata=self.meta)
-        self.assert_(self.table.name not in self.meta)
-
         # test defaults
         self.meta.clear()
-        self.verify(['server_default'], 'ids', table=self.table.name, server_default='foobar', alter_metadata=True, metadata=self.meta)
+        self.verify(['server_default'], 'ids', table=self.table.name, server_default='foobar',
+                    metadata=self.meta,
+                    alter_metadata=True)
         self.meta.tables.get(self.table.name).c.ids.server_default.arg == 'foobar'
 
         # test missing parameters
@@ -908,17 +880,11 @@ class TestColumnDelta(fixture.DB):
         self.assertEquals(delta.get('name'), 'blah')
         self.assertEquals(delta.current_name, 'id')
 
-        # check if alter_metadata is respected
         col_orig = self.mkcol(primary_key=True)
         self.verify(['name', 'type'], col_orig, name='id12', type=Text, alter_metadata=True)
         self.assert_(isinstance(col_orig.type, Text))
         self.assertEqual(col_orig.name, 'id12')
 
-        col_orig = self.mkcol(primary_key=True)
-        self.verify(['name', 'type'], col_orig, name='id12', type=Text, alter_metadata=False)
-        self.assert_(isinstance(col_orig.type, String))
-        self.assertEqual(col_orig.name, 'id')
-
         # test server default
         col_orig = self.mkcol(primary_key=True)
         delta = self.verify(['server_default'], col_orig, DefaultClause('foobar'))
diff --git a/migrate/versioning/genmodel.py b/migrate/versioning/genmodel.py
index 5a43437..b3449b6 100644
--- a/migrate/versioning/genmodel.py
+++ b/migrate/versioning/genmodel.py
@@ -170,11 +170,11 @@ class ModelGenerator(object):
                         modelTable, col.name))
             for modelCol, databaseCol, modelDecl, databaseDecl in diffDecl:
                 upgradeCommands.append(
-                    'assert False, "Can\'t alter columns: %s:%s=>%s"',
-                    modelTable, modelCol.name, databaseCol.name)
+                    'assert False, "Can\'t alter columns: %s:%s=>%s"' % (
+                    modelTable, modelCol.name, databaseCol.name))
                 downgradeCommands.append(
-                    'assert False, "Can\'t alter columns: %s:%s=>%s"',
-                    modelTable, modelCol.name, databaseCol.name)
+                    'assert False, "Can\'t alter columns: %s:%s=>%s"' % (
+                    modelTable, modelCol.name, databaseCol.name))
         pre_command = '    meta.bind = migrate_engine'
 
         return (
diff --git a/migrate/versioning/script/py.py b/migrate/versioning/script/py.py
index ed5b87e..35fe4aa 100644
--- a/migrate/versioning/script/py.py
+++ b/migrate/versioning/script/py.py
@@ -4,6 +4,7 @@
 import shutil
 import warnings
 import logging
+import inspect
 from StringIO import StringIO
 
 import migrate
@@ -136,12 +137,12 @@ class PythonScript(base.BaseScript):
         funcname = base.operations[op]
         script_func = self._func(funcname)
 
-        try:
-            script_func(engine)
-        except TypeError:
-            warnings.warn("upgrade/downgrade functions must accept engine"
-                " parameter (since version > 0.5.4)", MigrateDeprecationWarning)
-            raise
+        # check for old way of using engine
+        if not inspect.getargspec(script_func)[0]:
+            raise TypeError("upgrade/downgrade functions must accept engine"
+                " parameter (since version 0.5.4)")
+
+        script_func(engine)
 
     @property
     def module(self):
diff --git a/setup.py b/setup.py
index c0b6f6b..a2daa11 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@ readme_file = open(os.path.join(os.path.dirname(os.path.abspath(__file__)),
 
 setup(
     name = "sqlalchemy-migrate",
-    version = "0.6.1",
+    version = "0.6.2",
     packages = find_packages(exclude=["migrate.tests*"]),
     include_package_data = True,
     description = "Database schema migration for SQLAlchemy",
diff --git a/test-req.pip b/test-req.pip
index 58011eb..46c0196 100644
--- a/test-req.pip
+++ b/test-req.pip
@@ -9,6 +9,6 @@ pytz
 http://initd.org/psycopg/tarballs/psycopg2-2.2.2.tar.gz
 pysqlite
 mysql-python
-http://downloads.sourceforge.net/firebird/kinterbasdb-3.3.0.tar.bz2
+http://jenkins.gnuviech-server.de/userContent/kinterbasdb-3.3.0.tar.bz2
 virtualenv
 unittest2