Merge branch 'master' into validated

build.sbt

@@ -81,7 +81,7 @@ val catsEffectV = "2.1.2"      //https://github.com/typelevel/cats-effect/releas
 val specs2V = "4.9.4"             //https://github.com/etorreborre/specs2/releases
 val disciplineSpecs2V = "1.1.0" 
 val circeV = "0.13.0"          //https://github.com/circe/circe/releases
-val http4sV = "0.21.7"         //https://github.com/http4s/http4s/releases
+val http4sV = "0.21.15"         //https://github.com/http4s/http4s/releases
 val doobieV = "0.9.0"          //https://github.com/tpolecat/doobie/releases
 val scalaJavaTimeV = "2.0.0"  // https://github.com/cquiroz/scala-java-time/releases
 val testContainersSpecs2V = "0.2.0-M2" // 
@@ -98,7 +98,7 @@ lazy val commonSettings = Seq(
   scalaVersion := "2.13.1",
   crossScalaVersions := Seq(scalaVersion.value, "2.12.10"),
 
-  addCompilerPlugin("org.typelevel" %  "kind-projector"     % "0.11.0" cross CrossVersion.full),
+  addCompilerPlugin("org.typelevel" %  "kind-projector"     % "0.11.2" cross CrossVersion.full),
   addCompilerPlugin("com.olegpy"    %% "better-monadic-for" % "0.3.1"),
   libraryDependencies ++= Seq(
     "org.scala-lang"              %  "scala-reflect"               % scalaVersion.value,

modules/core/src/main/scala/io/chrisdavenport/fuuid/FUUID.scala

@@ -146,4 +146,13 @@ object FUUID {
     def withUUID[A](fuuid: FUUID)(f: UUID => A): A = f(fuuid.uuid)
   }
 
+  /**
+    * The Nil UUID.
+    *
+    * This is a constant UUID for which all bits are 0.
+    *
+    * @see [[https://tools.ietf.org/html/rfc4122#section-4.1.7]]
+    */
+  val NilUUID: FUUID =
+    FUUID.fromUUID(new UUID(0L, 0L))
 }

project/plugins.sbt

@@ -1,8 +1,8 @@
-addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat" % "0.1.13")
+addSbtPlugin("io.github.davidgregory084" % "sbt-tpolecat" % "0.1.16")
 addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.7.0")
 addSbtPlugin("org.tpolecat" % "tut-plugin" % "0.6.13")
 addSbtPlugin("com.47deg" % "sbt-microsites" % "0.9.7")
 addSbtPlugin("com.typesafe.sbt" % "sbt-ghpages" % "0.6.3")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.0.1")
-addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.3")
+addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.5")