diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1cc59edf..6defed4e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
+### Added
+- support for legacy environment variables
+- support for legacy workspace based on repository name
+- support for github deployment hooks
+- provide base sha for github pull requests
 
 ## [1.2.1] - 2019-06-11
 ### Added
diff --git a/go.mod b/go.mod
index a416af7f..08dc752e 100644
--- a/go.mod
+++ b/go.mod
@@ -19,7 +19,7 @@ require (
 	github.com/drone/drone-go v1.0.5-0.20190427184118-618e4496482e
 	github.com/drone/drone-runtime v1.0.6
 	github.com/drone/drone-ui v0.0.0-20190530175131-92ba3df1e0a9
-	github.com/drone/drone-yaml v1.2.1-0.20190717150947-d14ac477f983
+	github.com/drone/drone-yaml v1.2.2-0.20190719012529-c50000a465ee
 	github.com/drone/envsubst v1.0.1
 	github.com/drone/go-license v1.0.2
 	github.com/drone/go-login v1.0.4-0.20190311170324-2a4df4f242a2
diff --git a/go.sum b/go.sum
index 91aa4a0b..65d81d36 100644
--- a/go.sum
+++ b/go.sum
@@ -87,6 +87,10 @@ github.com/drone/drone-yaml v1.1.4-0.20190614011118-4889634ea9ae h1:CzpY1F9Ju46g
 github.com/drone/drone-yaml v1.1.4-0.20190614011118-4889634ea9ae/go.mod h1:l/ehbHx9TGs4jgzhRnP5d+M9tmRsAmWyBHWAFEOXrk4=
 github.com/drone/drone-yaml v1.2.1-0.20190717150947-d14ac477f983 h1:J59SqAC/DA1FuOXUvtGfYlhZSHegJL+AF9PnhXsxbKA=
 github.com/drone/drone-yaml v1.2.1-0.20190717150947-d14ac477f983/go.mod h1:l/ehbHx9TGs4jgzhRnP5d+M9tmRsAmWyBHWAFEOXrk4=
+github.com/drone/drone-yaml v1.2.2-0.20190719011530-e8b24d482cda h1:vPXJLgkyScZ0WnjzATIUcQbSRUjcP9BtnC+CMA1sSOk=
+github.com/drone/drone-yaml v1.2.2-0.20190719011530-e8b24d482cda/go.mod h1:l/ehbHx9TGs4jgzhRnP5d+M9tmRsAmWyBHWAFEOXrk4=
+github.com/drone/drone-yaml v1.2.2-0.20190719012529-c50000a465ee h1:/zyEkv56+T6JxLkYgYYwZAMLKBgEnHA3fwZXiVI9nuE=
+github.com/drone/drone-yaml v1.2.2-0.20190719012529-c50000a465ee/go.mod h1:l/ehbHx9TGs4jgzhRnP5d+M9tmRsAmWyBHWAFEOXrk4=
 github.com/drone/envsubst v1.0.1 h1:NOOStingM2sbBwsIUeQkKUz8ShwCUzmqMxWrpXItfPE=
 github.com/drone/envsubst v1.0.1/go.mod h1:bkZbnc/2vh1M12Ecn7EYScpI4YGYU0etwLJICOWi8Z0=
 github.com/drone/go-license v1.0.2 h1:7OwndfYk+Lp/cGHkxe4HUn/Ysrrw3WYH2pnd99yrkok=
diff --git a/operator/runner/runner.go b/operator/runner/runner.go
index 123ce24f..eb85e99b 100644
--- a/operator/runner/runner.go
+++ b/operator/runner/runner.go
@@ -188,6 +188,7 @@ func (r *Runner) Run(ctx context.Context, id int64) error {
 	// the legacy yaml configuration file to the new format.
 	y, err := converter.ConvertString(string(m.Config.Data), converter.Metadata{
 		Filename: m.Repo.Config,
+		URL:      m.Repo.Link,
 		Ref:      m.Build.Ref,
 	})
 
diff --git a/scheduler/queue/queue.go b/scheduler/queue/queue.go
index bce12f0e..a849b4c8 100644
--- a/scheduler/queue/queue.go
+++ b/scheduler/queue/queue.go
@@ -151,24 +151,27 @@ func (q *queue) signal(ctx context.Context) error {
 				continue
 			}
 
-			// the worker is platform-specific. check to ensure
-			// the queue item matches the worker platform.
-			if w.os != item.OS {
-				continue
-			}
-			if w.arch != item.Arch {
-				continue
-			}
-			// if the pipeline defines a variant it must match
-			// the worker variant (e.g. arm6, arm7, etc).
-			if item.Variant != "" && item.Variant != w.variant {
-				continue
-			}
-			// if the pipeline defines a kernel version it must match
-			// the worker kernel version (e.g. 1709, 1803).
-			if item.Kernel != "" && item.Kernel != w.kernel {
-				continue
+			if w.os != "" || w.arch != "" || w.variant != "" || w.kernel != "" {
+				// the worker is platform-specific. check to ensure
+				// the queue item matches the worker platform.
+				if w.os != item.OS {
+					continue
+				}
+				if w.arch != item.Arch {
+					continue
+				}
+				// if the pipeline defines a variant it must match
+				// the worker variant (e.g. arm6, arm7, etc).
+				if item.Variant != "" && item.Variant != w.variant {
+					continue
+				}
+				// if the pipeline defines a kernel version it must match
+				// the worker kernel version (e.g. 1709, 1803).
+				if item.Kernel != "" && item.Kernel != w.kernel {
+					continue
+				}
 			}
+
 			if len(item.Labels) > 0 || len(w.labels) > 0 {
 				if !checkLabels(item.Labels, w.labels) {
 					continue