diff --git a/README.md b/README.md
index a3e2ac5..ee6ab0c 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ This library provides a convenient interface for interacting with GitHub and Zen
 # Build
 
 ```bash
-./gradlew clean build
+./gradlew build
 ```
 
 # Versioning
diff --git a/build.gradle.kts b/build.gradle.kts
index 634e801..a8103bc 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,4 +1,4 @@
-var currentVersion = "4.2.0"
+var currentVersion = "5.0.0"
 
 if (project.hasProperty("snapshot")) {
     currentVersion = "${currentVersion}-SNAPSHOT"
diff --git a/src/main/graphql/zenhub/CreateIssuePrConnection.graphql b/src/main/graphql/zenhub/CreateIssuePrConnection.graphql
new file mode 100644
index 0000000..2f8c896
--- /dev/null
+++ b/src/main/graphql/zenhub/CreateIssuePrConnection.graphql
@@ -0,0 +1,5 @@
+mutation CreateIssuePrConnection($input: CreateIssuePrConnectionInput!) {
+    createIssuePrConnection(input: $input) {
+        clientMutationId
+    }
+}
diff --git a/src/main/graphql/zenhub/DeleteIssuePrConnection.graphql b/src/main/graphql/zenhub/DeleteIssuePrConnection.graphql
new file mode 100644
index 0000000..b05759b
--- /dev/null
+++ b/src/main/graphql/zenhub/DeleteIssuePrConnection.graphql
@@ -0,0 +1,5 @@
+mutation DeleteIssuePrConnection($input: DeleteIssuePrConnectionInput!) {
+    deleteIssuePrConnection(input: $input) {
+        clientMutationId
+    }
+}
diff --git a/src/main/graphql/zenhub/fragments/IssueFragment.graphql b/src/main/graphql/zenhub/fragments/IssueFragment.graphql
index 091cacf..0951104 100644
--- a/src/main/graphql/zenhub/fragments/IssueFragment.graphql
+++ b/src/main/graphql/zenhub/fragments/IssueFragment.graphql
@@ -38,6 +38,7 @@ fragment IssueFragment on Issue {
     # No need to get all pages as issues don't realistically have >100
     connectedPrs(first: 5) {
         nodes {
+            id
             number
             state
             htmlUrl
diff --git a/src/main/kotlin/zenhub/Pipeline.kt b/src/main/kotlin/zenhub/Pipeline.kt
deleted file mode 100644
index bc54973..0000000
--- a/src/main/kotlin/zenhub/Pipeline.kt
+++ /dev/null
@@ -1,15 +0,0 @@
-package zenhub
-
-enum class Pipeline(val id: String) {
-    IDEA_BOX("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTEzNjc"),
-    NEW_REQUEST("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTEyODY"),
-    EPICS("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTE0NTM"),
-    WORKSHOP_BACKLOG("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTE1MzE"),
-    WORKSHOP_IN_PROGRESS("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTE2MDg"),
-    ESTIMATE_READY("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTE2OTI"),
-    DEV_BACKLOG("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTE3NzI"),
-    DEV_IN_PROGRESS("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTE4NDc"),
-    REVIEW("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzIyOTUyNzk"),
-    MERGE_READY("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTIwODA"),
-    UAT_READY("Z2lkOi8vcmFwdG9yL1BpcGVsaW5lLzEwMTIxNzI")
-}
diff --git a/src/main/kotlin/zenhub/ZenHubClient.kt b/src/main/kotlin/zenhub/ZenHubClient.kt
index a20530f..76d8b68 100644
--- a/src/main/kotlin/zenhub/ZenHubClient.kt
+++ b/src/main/kotlin/zenhub/ZenHubClient.kt
@@ -20,11 +20,7 @@ private const val ZENHUB_GRAPHQL_URL = "https://api.zenhub.com/public/graphql"
 
 private const val DEFAULT_PAGE_SIZE = 100
 
-class ZenHubClient(
-    private val githubRepositoryId: Int = DEFAULT_GITHUB_REPOSITORY_ID,
-    private val gitRepositoryId: String = DEFAULT_GIT_REPOSITORY_ID,
-    private val zenhubWorkspaceId: String = DEFAULT_WORKSPACE_ID
-) : AutoCloseable {
+class ZenHubClient(private val zenhubWorkspaceId: String = DEFAULT_WORKSPACE_ID) : AutoCloseable {
 
     private val apolloClient: ApolloClient =
         ApolloClient.Builder()
@@ -113,14 +109,14 @@ class ZenHubClient(
         apolloClient.mutation(mutation).toFlow().single().data?.removeIssuesFromSprints
     }
 
-    fun getIssuesByPipeline(pipeline: Pipeline): List<GetIssuesByPipelineQuery.Node> = runBlocking {
+    fun getIssuesByPipeline(pipelineId: String): List<GetIssuesByPipelineQuery.Node> = runBlocking {
         val issues: ArrayList<GetIssuesByPipelineQuery.Node> = ArrayList()
         var hasNextPage: Boolean
         var endCursor: String? = null
 
         do {
             val issuesQuery =
-                GetIssuesByPipelineQuery(pipeline.id, Optional.presentIfNotNull(endCursor))
+                GetIssuesByPipelineQuery(pipelineId, Optional.presentIfNotNull(endCursor))
             val issuesInPage =
                 apolloClient.query(issuesQuery).toFlow().single().data?.searchIssuesByPipeline
 
@@ -233,17 +229,18 @@ class ZenHubClient(
     }
 
     /** Cannot move an issue to closed because closed is not a pipeline. */
-    fun moveIssueToPipeline(issueId: String, pipeline: Pipeline): MoveIssueMutation.MoveIssue? =
+    fun moveIssueToPipeline(issueId: String, pipelineId: String): MoveIssueMutation.MoveIssue? =
         runBlocking {
-            val input = MoveIssueInput(Optional.absent(), pipeline.id, issueId, Optional.present(0))
+            val input = MoveIssueInput(Optional.absent(), pipelineId, issueId, Optional.present(0))
             val mutation = MoveIssueMutation(input, DEFAULT_WORKSPACE_ID)
             apolloClient.mutation(mutation).toFlow().single().data?.moveIssue
         }
 
-    fun setEstimate(issueId: String, value: Double?): SetEstimateMutation.SetEstimate? =
+    fun setEstimate(issueId: String, value: Integer?): SetEstimateMutation.SetEstimate? =
         runBlocking {
             val input =
-                SetEstimateInput(Optional.absent(), Optional.presentIfNotNull(value), issueId)
+                SetEstimateInput(
+                    Optional.absent(), Optional.presentIfNotNull(value?.toDouble()), issueId)
             val mutation = SetEstimateMutation(input)
             apolloClient.mutation(mutation).toFlow().single().data?.setEstimate
         }
@@ -490,6 +487,18 @@ class ZenHubClient(
         issues
     }
 
+    fun createIssuePrConnection(issueId: String, pullRequestID: String) = runBlocking {
+        val input = CreateIssuePrConnectionInput(Optional.absent(), issueId, pullRequestID)
+        val mutation = CreateIssuePrConnectionMutation(input)
+        apolloClient.mutation(mutation).execute()
+    }
+
+    fun deleteIssuePrConnection(issueId: String, pullRequestID: String) = runBlocking {
+        val input = DeleteIssuePrConnectionInput(Optional.absent(), issueId, pullRequestID)
+        val mutation = DeleteIssuePrConnectionMutation(input)
+        apolloClient.mutation(mutation).execute()
+    }
+
     override fun close() {
         apolloClient.closeQuietly()
     }
diff --git a/src/test/kotlin/zenhub/ZenHubClientTest.kt b/src/test/kotlin/zenhub/ZenHubClientTest.kt
index 8a8aa3d..c5b0425 100644
--- a/src/test/kotlin/zenhub/ZenHubClientTest.kt
+++ b/src/test/kotlin/zenhub/ZenHubClientTest.kt
@@ -1,7 +1,6 @@
 package zenhub
 
 import kotlin.test.assertEquals
-import kotlin.test.assertNotNull
 import kotlin.test.assertTrue
 import org.junit.jupiter.api.Test
 
@@ -15,17 +14,6 @@ class ZenHubClientTest {
         assertEquals(18004, issue?.issueFragment?.number)
     }
 
-    @Test
-    fun whenGetIssuesByPipelineThenAtLeastZeroIssues() {
-        val issues = zenHubClient.getIssuesByPipeline(Pipeline.MERGE_READY)
-
-        if (issues.isNotEmpty()) {
-            assertTrue(issues[0].issueFragment.number > 0)
-        } else {
-            assertNotNull(issues)
-        }
-    }
-
     @Test
     fun whenGetReleasesForValidRepoThenAtLeastOneRelease() {
         val releases = zenHubClient.getReleases(DEFAULT_GITHUB_REPOSITORY_ID)