29 January 2009	Amended	Contact details updated.
7 November 2008	New citation required and conclusions have changed	A previously published Cochrane review on ‘Acupuncture for idiopathic headache’ has been split into two reviews: the present review on ‘Acupuncture for tension-type headache’, and a separate review on ‘Acupuncture for migraine prophylaxis’. Six new trials of acupuncture for tension-type headache are included in the present review (Endres 2007; Jena 2008; Karst 2001; Melchart 2005; Söderberg 2006; White 2000). Conclusions have changed as follows: In the previous version of this review, the evidence in support of acupuncture for tension-type headache was considered insufficient. Now the authors conclude that acupuncture might be considered as a treatment option for frequent episodic or chronic tension-type headache, although the selection of specific acupuncture points may not be as important as has been thought by providers. The list of review authors has been slightly amended vis-à-vis the earlier review (D Melchart and B Berman no longer authors; E Manheimer added as new author).
9 May 2008	Amended	Converted to new review format.
9 January 2008	New search has been performed	All searches updated.