diff --git a/Changelog.md b/Changelog.md
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,15 @@
+# 1.2.1.0 (2021-11-21)
+
+## New features
+
+* `castTable` has been added, which casts all columns selected from in `Query` according to the types of columns. This can occasionally be useful when using `many`/`some` on older PostgreSQL versions. ([#137](https://github.com/circuithub/rel8/pull/137))
+
+* Added `<:`, `<=:`, `>:`, `>=:`, `greatest` and `least`, which sort all columns in a table lexicographically. These operators are like the `<.` operators which operate on `Expr`s, but the `<:` operate on entire tables. ([#139](https://github.com/circuithub/rel8/pull/139))
+
+## Other
+
+* Support opaleye-0.8 ([#142](https://github.com/circuithub/rel8/pull/142))
+
 # 1.2.0.0 (2021-10-22)
 
 ## New features
diff --git a/rel8.cabal b/rel8.cabal
--- a/rel8.cabal
+++ b/rel8.cabal
@@ -1,6 +1,6 @@
 cabal-version:       2.0
 name:                rel8
-version:             1.2.0.0
+version:             1.2.1.0
 synopsis:            Hey! Hey! Can u rel8?
 license:             BSD3
 license-file:        LICENSE
@@ -27,7 +27,7 @@
     , comonad
     , contravariant
     , hasql ^>= 1.4.5.1
-    , opaleye ^>= 0.7.3.0
+    , opaleye ^>= 0.8.0.0
     , pretty
     , profunctors
     , product-profunctors
diff --git a/src/Rel8.hs b/src/Rel8.hs
--- a/src/Rel8.hs
+++ b/src/Rel8.hs
@@ -47,10 +47,11 @@
   , AltTable((<|>:))
   , AlternativeTable( emptyTable )
   , EqTable, (==:), (/=:)
-  , OrdTable, ascTable, descTable
+  , OrdTable, (<:), (<=:), (>:), (>=:), ascTable, descTable, greatest, least
   , lit
   , bool
   , case_
+  , castTable
 
     -- ** @MaybeTable@
   , MaybeTable
@@ -362,6 +363,7 @@
 import Rel8.Table.Maybe
 import Rel8.Table.Name
 import Rel8.Table.NonEmpty
+import Rel8.Table.Opaleye ( castTable )
 import Rel8.Table.Ord
 import Rel8.Table.Order
 import Rel8.Table.Projection
diff --git a/src/Rel8/Query/Distinct.hs b/src/Rel8/Query/Distinct.hs
--- a/src/Rel8/Query/Distinct.hs
+++ b/src/Rel8/Query/Distinct.hs
@@ -11,7 +11,7 @@
 import Prelude
 
 -- opaleye
-import qualified Opaleye.Distinct as Opaleye
+import qualified Opaleye.Distinct as Opaleye hiding ( distinctOn, distinctOnBy )
 import qualified Opaleye.Internal.Order as Opaleye
 import qualified Opaleye.Internal.QueryArr as Opaleye