diff --git a/docs/hello_nextflow/01_hello_world.md b/docs/hello_nextflow/01_hello_world.md
index 20253a018..8182537ee 100644
--- a/docs/hello_nextflow/01_hello_world.md
+++ b/docs/hello_nextflow/01_hello_world.md
@@ -210,7 +210,7 @@ nextflow run hello-world.nf
 You console output should look something like this:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-world.nf` [goofy_torvalds] DSL2 - revision: c33d41f479
 
@@ -351,7 +351,7 @@ nextflow run hello-world.nf
 The log output should look very familiar:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-world.nf` [jovial_mayer] DSL2 - revision: 35bd3425e5
 
@@ -395,7 +395,7 @@ nextflow run hello-world.nf -resume
 The console output should look similar.
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-world.nf` [golden_cantor] DSL2 - revision: 35bd3425e5
 
@@ -584,7 +584,7 @@ nextflow run hello-world.nf --greeting 'Bonjour le monde!'
 If you made all three edits correctly, you should get another successful execution:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-world.nf` [elated_lavoisier] DSL2 - revision: 7c031b42ea
 
@@ -637,7 +637,7 @@ nextflow run hello-world.nf
 The console output should look the same.
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-world.nf` [determined_edison] DSL2 - revision: 3539118582
 
@@ -666,7 +666,7 @@ nextflow run hello-world.nf --greeting 'Konnichiwa!'
 The console output should look the same.
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-world.nf` [elegant_faraday] DSL2 - revision: 3539118582
 
diff --git a/docs/hello_nextflow/02_hello_channels.md b/docs/hello_nextflow/02_hello_channels.md
index 87c2ad6a5..c7fe84781 100644
--- a/docs/hello_nextflow/02_hello_channels.md
+++ b/docs/hello_nextflow/02_hello_channels.md
@@ -35,7 +35,7 @@ nextflow run hello-channels.nf --greeting 'Hello Channels!'
 ```
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [insane_lichterman] DSL2 - revision: c33d41f479
 
@@ -149,7 +149,7 @@ nextflow run hello-channels.nf
 If you made both edits correctly, you should get another successful execution:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [nice_heisenberg] DSL2 - revision: 41b4aeb7e9
 
@@ -219,7 +219,7 @@ nextflow run hello-channels.nf
 It certainly seems to run just fine:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [suspicious_lamport] DSL2 - revision: 778deadaea
 
@@ -244,7 +244,7 @@ nextflow run hello-channels.nf -ansi-log false
 This time we see all three process runs and their associated work subdirectories listed in the output:
 
 ```console title="Output" linenums="1"
-N E X T F L O W  ~  version 24.10.0
+N E X T F L O W  ~  version 25.04.3
 Launching `hello-channels.nf` [pensive_poitras] DSL2 - revision: 778deadaea
 [76/f61695] Submitted process > sayHello (1)
 [6e/d12e35] Submitted process > sayHello (3)
@@ -354,7 +354,7 @@ nextflow run hello-channels.nf
 Reverting back to the summary view, the output looks like this again:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [astonishing_bell] DSL2 - revision: f57ff44a69
 
@@ -478,7 +478,7 @@ nextflow run hello-channels.nf
 Oh no! Nextflow throws an error that starts like this:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [friendly_koch] DSL2 - revision: 97256837a7
 
@@ -580,7 +580,7 @@ nextflow run hello-channels.nf
 This time it works AND gives us the additional insight into what the contents of the channel look like before and after we run the `flatten()` operator:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [tiny_elion] DSL2 - revision: 1d834f23d2
 
@@ -697,7 +697,7 @@ nextflow run hello-channels.nf
 Oh no, it doesn't work. Here's the start of the console output and error message:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [adoring_bhabha] DSL2 - revision: 8ce25edc39
 
@@ -764,7 +764,7 @@ nextflow run hello-channels.nf
 Interestingly, this fails too, but with a different error. The console output and error starts like this:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [stoic_ride] DSL2 - revision: a0e5de507e
 
@@ -852,7 +852,7 @@ nextflow run hello-channels.nf
 This time it should run without error.
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-channels.nf` [tiny_heisenberg] DSL2 - revision: 845b471427
 
diff --git a/docs/hello_nextflow/03_hello_workflow.md b/docs/hello_nextflow/03_hello_workflow.md
index e455b295d..1b36fdd04 100644
--- a/docs/hello_nextflow/03_hello_workflow.md
+++ b/docs/hello_nextflow/03_hello_workflow.md
@@ -40,7 +40,7 @@ nextflow run hello-workflow.nf
 ```
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-workflow.nf` [stupefied_sammet] DSL2 - revision: b9e466930b
 
@@ -197,7 +197,7 @@ nextflow run hello-workflow.nf -resume
 You should see the following output:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-workflow.nf` [disturbed_darwin] DSL2 - revision: 4e252c048f
 
@@ -420,7 +420,7 @@ nextflow run hello-workflow.nf -resume
 It runs successfully, including the third step:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-workflow.nf` [mad_gilbert] DSL2 - revision: 6acfd5e28d
 
@@ -511,7 +511,7 @@ nextflow run hello-workflow.nf -resume
 It runs successfully, although the log output may look a little messier than this (we cleaned it up for readability).
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-workflow.nf` [soggy_franklin] DSL2 - revision: bc8e1b2726
 
@@ -691,7 +691,7 @@ nextflow run hello-workflow.nf -resume --batch trio
 It runs successfully:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-workflow.nf` [confident_rutherford] DSL2 - revision: bc58af409c
 
@@ -842,7 +842,7 @@ nextflow run hello-workflow.nf -resume --batch trio
 This runs successfully:
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-workflow.nf` [evil_sinoussi] DSL2 - revision: eeca64cdb1
 
diff --git a/docs/hello_nextflow/04_hello_modules.md b/docs/hello_nextflow/04_hello_modules.md
index ab18757f9..e9d89beaf 100644
--- a/docs/hello_nextflow/04_hello_modules.md
+++ b/docs/hello_nextflow/04_hello_modules.md
@@ -37,7 +37,7 @@ nextflow run hello-modules.nf
 ```
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-modules.nf` [festering_nobel] DSL2 - revision: eeca64cdb1
 
@@ -168,7 +168,7 @@ nextflow run hello-modules.nf -resume
 This runs quickly very quickly because everything is cached.
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-modules.nf` [romantic_poisson] DSL2 - revision: 96edfa9ad3
 
@@ -265,7 +265,7 @@ nextflow run hello-modules.nf -resume
 This should still produce the same output as previously.
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-modules.nf` [nauseous_heisenberg] DSL2 - revision: a04a9f2da0
 
@@ -357,7 +357,7 @@ nextflow run hello-modules.nf -resume
 This should still produce the same output as previously.
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-modules.nf` [friendly_coulomb] DSL2 - revision: 7aa2b9bc0f
 
diff --git a/docs/hello_nextflow/05_hello_containers.md b/docs/hello_nextflow/05_hello_containers.md
index a3ed70bcf..a93ec321c 100644
--- a/docs/hello_nextflow/05_hello_containers.md
+++ b/docs/hello_nextflow/05_hello_containers.md
@@ -38,7 +38,7 @@ nextflow run hello-containers.nf
 This should produce the following output:
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-containers.nf` [tender_becquerel] DSL2 - revision: f7cat8e223
 
@@ -187,7 +187,7 @@ ls /
 ```
 
 ```console title="Output"
-bin    dev    etc    home   lib    media  mnt    opt    proc   root   run    sbin   srv    sys    tmp    usr    var
+bin  boot  dev  etc  home  lib  lib64  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var
 ```
 
 You can see that the filesystem inside the container is different from the filesystem on your host system.
@@ -277,8 +277,8 @@ ls /data
 Depending on what part of this training you've done before, the output below my look slightly different.
 
 ```console title="Output"
-demo-params.json  hello-channels.nf  hello-workflow.nf  modules          results
-greetings.csv     hello-modules.nf   hello-world.nf     nextflow.config  work
+greetings.csv      hello-config.nf      hello-modules.nf   hello-world.nf  nextflow.config  solutions         work
+hello-channels.nf  hello-containers.nf  hello-workflow.nf  modules         results          test-params.json
 ```
 
 <!-- ls output may need to be updated -->
@@ -498,7 +498,7 @@ nextflow run hello-containers.nf -resume
 Oh no, there's an error!
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-containers.nf` [special_lovelace] DSL2 - revision: 028a841db1
 
@@ -599,7 +599,7 @@ nextflow run hello-containers.nf -resume
 This time it does indeed work.
 
 ```console title="Output" linenums="1"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-containers.nf` [elegant_brattain] DSL2 - revision: 028a841db1
 
diff --git a/docs/hello_nextflow/06_hello_config.md b/docs/hello_nextflow/06_hello_config.md
index 7410c51c4..43054a7ac 100644
--- a/docs/hello_nextflow/06_hello_config.md
+++ b/docs/hello_nextflow/06_hello_config.md
@@ -42,7 +42,7 @@ nextflow run hello-config.nf
 ```
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-config.nf` [reverent_heisenberg] DSL2 - revision: 028a841db1
 
@@ -145,7 +145,7 @@ nextflow run hello-config.nf
 This should work without issue.
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-config.nf` [trusting_lovelace] DSL2 - revision: 028a841db1
 
@@ -360,7 +360,7 @@ nextflow run hello-config.nf -params-file test-params.json
 It works! And as expected, this produces the same outputs as previously.
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-config.nf` [disturbed_sammet] DSL2 - revision: ede9037d02
 
@@ -509,7 +509,7 @@ nextflow run hello-config.nf -profile my_laptop
 This still produces the following output:
 
 ```
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-config.nf` [gigantic_brazil] DSL2 - revision: ede9037d02
 
@@ -591,7 +591,7 @@ nextflow run hello-config.nf -profile my_laptop,test
 This should produce the following:
 
 ```console title="Output"
- N E X T F L O W   ~  version 24.10.0
+ N E X T F L O W   ~  version 25.04.3
 
 Launching `hello-config.nf` [gigantic_brazil] DSL2 - revision: ede9037d02
 
diff --git a/hello-nextflow/hello-containers.nf b/hello-nextflow/hello-containers.nf
index 8764606bf..4ba435eda 100644
--- a/hello-nextflow/hello-containers.nf
+++ b/hello-nextflow/hello-containers.nf
@@ -28,5 +28,5 @@ workflow {
     collectGreetings(convertToUpper.out.collect(), params.batch)
 
     // emit a message about the size of the batch
-    collectGreetings.out.count.view { "There were $it greetings in this batch" }
+    collectGreetings.out.count.view { num_greetings -> "There were $num_greetings greetings in this batch" }
 }